Entries |
Document | Title | Date |
20080207781 | Sulfonated Poly(Arylenes) as Hydrolytically and Thermo-Oxidatively Stable Polymers - Hydrolytically and thermo-oxidatively stable sulfonated polyarylenes include the structural element —X—Ar(SO | 08-28-2008 |
20080214685 | Multibrached Polymer and Method for Producing the Same - The present invention provides a multibranched polymer represented by the following formula (I), and a method for producing the multibranched polymer: | 09-04-2008 |
20080214686 | PROCESS FOR PRODUCTION OF ZEOLITE FILM - A process for producing a zeolite membrane comprising a seed crystal forming step of placing, in a pressure-resistant vessel, a seeding sol containing silica, water and a structure-directing agent and a support in a state that the support is immersed in the seeding sol and heating the heat-resistant vessel to form a zeolite seed crystal on the surface of the support, and a membrane formation step of allowing the zeolite seed crystal to grow to form a zeolite membrane on the surface of the support. In the seed crystal forming step, the molar ratio of water/silica in the seeding sol is set 10 to 50 and the heating of the pressure-resistant vessel is conducted at 90 to 130° C. The crystal c-axis of the present zeolite membrane is oriented in a direction vertical to the surface of the support and its thickness is uniform. | 09-04-2008 |
20080242750 | Polycyclic polymers containing pendant ion conducting moieties - A polymer comprising polycyclic repeating units having recurring ion conducting groups and optional crosslinkable groups is disclosed. The present invention provides the capability of tailoring polymers to impart unique properties to membranes fabricated from the polymers. Membranes comprising the polymers and methods for preparing the membranes and their use in ion conducting membranes, particularly in fuel cells, are also provided. | 10-02-2008 |
20080269360 | Solid-State Polymer Electrolyte Membrane, Method for Manufacture Thereof and Solid-State Polymer Electrolyte Fuel Cell Therewith - The present invention provides an inexpensive solid-state polymer electrolyte membrane to be used in a solid-state polymer electrolyte fuel cell, which can be manufactured by using inexpensive raw materials through a simpler chemical synthesis process, achieves good heat resistance and demonstrates superior proton conductivity at low humidity. A primary constituent of the solid-state electrolyte polymer film to be used in a solid-state polymer electrolyte fuel cell according to the present invention is a hyperbranched polymer having an acidic functional group such as sulfonic acid disposed at the terminal of a side chain thereof. The hyperbranched polymer may be, for instance, poly[(bis(oligo-ethylene glycol) benzoate)]. | 10-30-2008 |
20080275146 | ION-CONDUCTING SULFONATED POLYMERIC MATERIALS - Sulfonated polymers are made by the direct polymerization of a sulfonated monomer to form the sulfonated polymers. The types of sulfonated polymers may include polysulfones or polyimides. The sulfonated polymers can be formed into membranes that may be used in proton exchange membrane fuel cells or as ion exchange membranes. The membranes formed from the sulfonated polymers exhibit improved properties over that of Nafion®. A heteropoly acid may be added to the sulfonated polymer to form a nanocomposite membrane in which the heteropoly acid is highly dispersed. The addition of a heteropoly acid to the sulfonated polymer increases the thermal stability of the membrane, enhances the conductivity above 100° C., and reduces the water uptake of the membrane. | 11-06-2008 |
20080312349 | METHOD OF MAKING AND USING MEMBRANE - A process is provided that includes attaching a zwitterion to a polymer or a copolymer, wherein the polymer or copolymer comprises a polyarylene ether or a polyarylene. | 12-18-2008 |
20080312350 | Crosslinked aromatic polymer electrolyte membrane and method for producing same - An aromatic polymer film substrate, or a grafted aromatic polymer film substrate having a monomer introduced therein as graft chains is irradiated with ionizing radiation to impart a crosslinked structure. The aromatic polymer film substrate or the grafted aromatic polymer film substrate, provided with the crosslinked structure, is directly sulfonated to obtain a crosslinked aromatic polymer electrolyte membrane. The crosslinked aromatic polymer electrolyte membrane has low water uptake, high proton conductivity, low methanol permeability, high chemical stability, and excellent mechanical characteristics. A method for producing the crosslinked aromatic polymer electrolyte membrane is also provided. | 12-18-2008 |
20090093556 | Electronically and ionically conductive porous material and method for manufacture of resin wafers therefrom - An electrically and ionically conductive porous material including a thermoplastic binder and one or more of anion exchange moieties or cation exchange moieties or mixtures thereof and/or one or more of a protein capture resin and an electrically conductive material. The thermoplastic binder immobilizes the moieties with respect to each other but does not substantially coat the moieties and forms the electrically conductive porous material. A wafer of the material and a method of making the material and wafer are disclosed. | 04-09-2009 |
20090118381 | Separation of High Density Lipoproteins on Polymer Monoliths with Decreased Hydrophobicity - Described are polymer monolith compositions for separating high density lipoprotein, as well as related methods of use. | 05-07-2009 |
20090131544 | Extrusion of a Thermoplastic Polymer Bearing Acid Ionic Groupings - The invention relates to a process for the extrusion of thermoplastic polymers having acid ionic groups. | 05-21-2009 |
20090203805 | Membrane Preparation Method Comprising the Extrusion of a Thermoplastic Polymer Bearing Alkaline Groupings - The invention relates to a process for the extrusion of thermoplastic polymers having alkaline ionic groups. | 08-13-2009 |
20090203806 | POLY(ARYL ETHER) WITH PENDENT SULFONIC ACID PHENYL GROUPS - A sulfonated poly(aryl ether) (SPAE) having a poly(aryl ether) (PAE) main chain and a sulfonated phenyl group pendent from the main chain are useful in proton exchange membranes (PEMs), particularly for fuel cells. The pendent phenyl group can provide an easily sulfonable site that may be sulfonated under mild conditions, providing the ability to precisely control the sulfonic acid content of the SPAE. | 08-13-2009 |
20090264544 | Polyarylene polymers and ion conducting functionalized polyarylene polymers resulting from pairing bis-diene arylenes and bis-dienophile arylenes via a diels-alder reaction - The invention discloses a group of novel and functionalized arylene polymers that comprise repeat units from a group consisting of polyarylene, polybenzimidazolene, polybenzimidazole, and poly(arylene-co-cyclohexadiene). The compositions are created via Diels-Alder polymerization and result in a polymer that is chemically and thermally stable. The polyarylene polymers can be used to create improved polymer electrolyte membranes that overcome the limitations of Nafion® membranes for use in fuel cells. | 10-22-2009 |
20090281201 | METHOD FOR PREPARING A POLY(ARYL ETHER) ANION-EXCHANGE MEMBRANE - A method for preparing a polymer anion-exchange membrane by forming a chloromethylated polymer, quaternizing the chloromethylated polymer, and casting. The method is simple to use and the obtained polymer anion-exchange membrane has good mechanical properties, improved thermal and chemical stability, as well as high ion-exchange capacity. | 11-12-2009 |
20090306233 | ION-EXCHANGE MEMBRANE FOR ALKALINE CHLORIDE ELECTROLYSIS - To provide an ion exchange membrane for alkaline chloride electrolysis having a low electric resistance and further having a sufficient mechanical strength. | 12-10-2009 |
20090318575 | ANION-CONDUCTING POLYMER, COMPOSITION, AND MEMBRANE - Anion-conducing polymers and membranes with enhanced stability to aqueous alkali include a polymer backbone with attached sulfonium, phosphazenium, phosphazene, and guanidinium residues. Compositions also with enhanced stability to aqueous alkali include a support embedded with sulfonium, phosphazenium, and guanidinium salts. | 12-24-2009 |
20100022672 | ION EXCHANGE POLYMER - The present invention provides an ion exchange polymer. The ion exchange polymer has two or more heterocyclic groups, each of which contains a nitrogen atom and is a mono-valent cation. | 01-28-2010 |
20100022673 | PROTON-CONDUCTIVE FILM, FUEL CELL COMPRISING THE SAME AND METHOD FOR PRODUCING THE SAME - The proton-conductive film comprises a mesoporous thin film that has, as the principal component thereof, a crosslinked structure having a metal-oxygen skeleton with an acid group bonding to at least a part thereof, in which the pores are periodically aligned and the inner wall of the pores is coated with a silanol group. | 01-28-2010 |
20100041777 | COMPACTED POLYELECTROLYTE COMPLEXES AND ARTICLES - A method is described for producing an osmotically compacted polyelectrolyte complex having a first region and a second region, the first region having a greater modulus than the second region. The method comprises contacting an article comprising polyelectrolyte complex to a solution comprising a preferred osmolyte of concentration sufficient to compact said polyelectrolyte complex and terminating the compaction process before the entire article is osmotically compacted. | 02-18-2010 |
20100056650 | Membrane Production - The present invention is a method for forming a hydrophilic polymer membrane for use in a membrane electrode assembly, comprising the polymerisation of a material or materials from which the membrane may be formed, wherein the polymerisation is by UV curing. | 03-04-2010 |
20100063168 | IONOMERS WITH IONOGENIC GROUPS IN THE SIDECHAIN - The invention relates to ionomeric membranes, comprising a non- or partly-fluorinated, non-, partly- or fully-aromatic backbone and a non- or partly-fluorinated sidechain with ionogenic groups, or the non-ionic precursors thereof and a method for production of said ionomeric membranes. | 03-11-2010 |
20100087553 | Process for stabilizing fluoropolymer having ion exchange groups - The invention pertains to a process for stabilizing a semi-crystalline fluoropolymer comprising ion exchange groups, said process comprising:
| 04-08-2010 |
20100093878 | CROSSLINKABLE FLUOROPOLYMER, CROSSLINKED FLUOROPOLYMERS AND CROSSLINKED FLUOROPOLYMER MEMBRANES - Crosslinkable fluoropolymers and crosslinked fluoropolymers prepared from select fluorinated monomers by dimerization and trimerization. Also disclosed are proton conductive membranes of these crosslinked fluoropolymers. | 04-15-2010 |
20100093879 | High Selectivity Polymer-Nano-Porous Particle Membrane Structures - Methods comprising mixing at least one nano-porous particle into a homogeneous solution of a polymer and a diluent at an elevated temperature to form a mixture; and cooling the mixture to solidify the polymer. Membranes comprising at least one nano-porous particle; and a polymer; wherein the at least one nano-porous particle comprises pores ranging from about 0.1 nanometers to about 10,000 nanometers in size. | 04-15-2010 |
20100105786 | Method for Producing Polymer Compound - A method for polymerizing a monomer represented by the formula (1) or copolymerizing a monomer represented by the formula (1) and a monomer represented by the formula (2) in the co-presence of a condensation agent comprising a transition metal complex, to thereby produce a polymer compound represented by the formula (3): X | 04-29-2010 |
20100130625 | PROTON EXCHANGE MEMBRANE AND METHOD FOR MANUFACTURING THE SAME - A proton exchange membrane and method for formation the same is disclosed. When forming the proton exchange membrane, first, a bismaleimide and barbituric acid are copolymerized to form a hyper-branched polymer. Next, the solvent of the sulfonated tetrafluorethylene copolymer (Nafion) aqueous solution is replaced with dimethyl acetamide (DMAc). 10 to 15 parts by weight of the hyper-branched polymer is added to 90 to 85 parts by weight of the Nafion in the DMAc solution, stood and heated to 50° C. for inter-penetration of the hyper-branched polymer and the Nafion. The heated solution is coated on a substrate, baked, and pre-treated to remove residue solvent to complete formation of the proton exchange membrane. | 05-27-2010 |
20100137460 | ELECTROCHEMICAL DEVICES CONTAINING ANIONIC-EXCHANGE MEMBRANES AND POLYMERIC IONOMERS - Electrochemical devices allowing high performances in resistance, thermal stability and conductivity comprising polymeric ionic exchange membranes and ionomers are described. | 06-03-2010 |
20100160466 | FILLED NANOPOROUS POLYMER MEMBRANE COMPOSITES FOR PROTECTIVE CLOTHING AND METHODS FOR MAKING THEM - A new class of membranes for use in protective clothing. More specifically, the present invention relates to a polymer-polymer membrane with an ionic polymer located within the nanopores of a porous polymer host membrane. A method for making the polymer-polymer membranes involves filling porous polymers with ionic polymers. The porous polymers may be fabricated by a template synthesis which involves sorption. The ionic polymers may be filled in the nanopores of the porous polymer by plasma-induced graft copolymerization of the ionic polymer with the porous polymeric host membrane. | 06-24-2010 |
20100190875 | Crosslinked aromatic polymer electrolyte membrane - An aromatic polymer film substrate, or a grafted aromatic polymer film substrate having a monomer introduced therein as graft chains is irradiated with ionizing radiation to impart a crosslinked structure. The aromatic polymer film substrate or the grafted aromatic polymer film substrate, provided with the crosslinked structure, is directly sulfonated to obtain a crosslinked aromatic polymer electrolyte membrane. The crosslinked aromatic polymer electrolyte membrane has low water uptake, high proton conductivity, low methanol permeability, high chemical stability, and excellent mechanical characteristics. | 07-29-2010 |
20100197816 | HIGH TEMPERATURE STABLE POLYELECTROLYTES HAVING BACKBONE AROMATIC GROUPS - The invention relates to polyelectrolytes having backbone aromatic groups, and in particular to aromatic backbone group polyelectrolytes having high levels of sulfonation as well as cross-linking functionality. Preferably the polyelectrolyte back-bone is free of linear alkyl groups. | 08-05-2010 |
20100210742 | MICROPHASE-SEPARATED STRUCTURE MEMBRANE AND PROCESS FOR PRODUCING THE SAME - Provided is a microphase-separated structure membrane including a block copolymer in which a hydrophilic polymer component and a hydrophobic polymer component are coupled to each other via a structural unit having a reactive group, an electron acceptor or electron donor, or a dye. In the microphase-separated structure membrane, a cylinder structure composed of the hydrophilic polymer component lies in a matrix composed of the hydrophobic polymer component and is oriented in the direction perpendicular to the membrane surface, and the structural unit having a reactive group, an electron acceptor or electron donor, or a dye lies between the matrix and the cylinder structure. | 08-19-2010 |
20100216899 | POLYAMIDE MEMBRANES WITH FLUOROALCOHOL FUNCTIONALITY - A polymeric membrane includes an active layer on a support. The active layer includes a polymer with a backbone, and the backbone has attached thereto at least one fluoroalcohol moiety. | 08-26-2010 |
20100216900 | Polymers with benzoxazine groups in their main chains - The present invention discloses polymers prepared through the Diels-Alder reaction with benzoxazine groups in their main chains. Moreover, polymers with high molecular weight could be successfully prepared via this method. Furthermore, the mentioned polymers are able to undergo crosslinking reaction by heat treatment. Heat energy causes the ring-opening reaction of benzoxazine in polymer main chains to undergo crosslinking reaction, and cross-linked polymers are thereby formed with great flexibility and high crosslinking degree. | 08-26-2010 |
20100216901 | Polymer electrolyte membrane comprising alkylether graft chain and method of producing the same - A method of producing an electrolyte membrane for use in a fuel cell, including: performing radiation-induced graft polymerization of a vinyl monomer having a nucleophilic functional group selected from an acylvinyl ether derivative, a styrene derivative, and a methacrylic acid derivative, with a polymer substrate having a fluorine-containing polymer, an olefin-containing polymer, or an aromatic polymer; deprotecting an ester bond of a graft chain on the polymer substrate introduced by the radiation-induced graft polymerization; and introducing an alkylethersulfonic acid structure into the nucleophilic functional group of the graft chain thus deprotected, by use of an electrophilic reagent selected from cyclic sulfonic acid ester and alkylhalide sulfonate. | 08-26-2010 |
20100261801 | METHOD FOR MAKING A FUNCTIONALIZED MEMBRANE - The present disclosure describes functional membranes and a method for making a functional membrane. The method includes providing a porous substrate, applying the at least one graftable species to the porous substrate, and treating the coated porous substrate with electron beam radiation to provide a functionalized membrane. The method includes forming a functionalized membrane comprising a gradient of grafted species attached to the porous substrate. | 10-14-2010 |
20100280138 | METHOD OF ACTIVATING BORON NITRIDE - A method of activating boron nitride comprises exposing the boron nitride to a fluid enabling —OH hydroxyl radicals and/or H | 11-04-2010 |
20100292351 | PROCESS TO PREPARE CROSSLINKABLE TRIFLUOROSTYRENE POLYMERS AND MEMBRANES - Described herein is a process to prepare crosslinkable polymers based on trifluorostyrene, and their use as polymer electrolyte membranes. | 11-18-2010 |
20100298452 | Proton-Conducting Polymer with a Two-Dimensional Backbone of Metal-Oxygen Bonding - The present invention relates a new proton-conducting polymer with a two dimensional backbone with metal-oxygen bonding. The metal ion in the backbone of the proton-conducting polymer of the present invention comprises elements from Group IIIA, IVA, VA, IIIB, IVB, VB, VIB, lanthanides, etc in the Chemical Periodic Table. It is more preferred for the metal ion of the proton-conducting polymer of the present invention to be silicon, aluminum, boron, gallium, indium, tin, antimony, bismuth, titanium, or zirconium. It is further preferred that the backbone of the proton-conducting polymer of the present invention comprises silicon, aluminum, boron, zirconium, or titanium. It is further preferred that the proton-conduction polymer of the present invention comprises silicon in its two dimensional backbone. The backbone of the proton-conducting polymer of the present invention is chemically stable to attacks from the hydroxyl free radicals in the fuel cells. The invented polymer with a two dimensional backbone of metal-oxygen bonding is thermally stable for high temperature usage as a proton-exchange membrane for proton-exchange membrane fuel cells. The polymer with a two dimensional backbone of metal-oxygen bonding is also flexible and ductile enough to allow successful fabrication of the invented material into membrane-electrode-assembly for fuel cells. The flexibility and conductivity of the proton-conducting polymer of the present invention also allow the proton-exchange membrane fuel cell to have a long lifespan with minimal issues in membrane delamination and denaturing during fuel cell operation at a high temperature. | 11-25-2010 |
20110003902 | PROTON TRANSPORTING MATERIAL, STARTING MATERIAL THEREOF, ION EXCHANGE MEMBRANE, MEMBRANE ELECTROLYTE ASSEMBLY, AND FUEL CELL USING THE SAME - There are provided: a proton transporting material that improves mechanical characteristics of a sulfonated liquid crystalline polymer material, can be kept as a membrane even though it is made a solid state while maintaining a molecular arrangement of a liquid crystalline state, and is suitable for electrolyte membranes of fuel cells etc.; an ion exchange membrane, a membrane electrolyte assembly (MEA), and a fuel cell that use the proton transporting material; a starting material for the proton transporting material. The proton transporting material has a molecular structure produced by crosslinking the sulfonated liquid crystalline polymer material with a crosslinking agent having two or more functional groups in sites except that of the sulfonic acid group. | 01-06-2011 |
20110009503 | FRACTIONATION APPARATUS - The present invention discloses a fractionation device used for proteins and/or peptides, which has any of the following features: | 01-13-2011 |
20110009504 | PROTON EXCHANGE MEMBRANES (PEM) BASED ON HYBRID INORGANIC-ORGANIC COPOLYMERS WITH GRAFTED PHOSPHORIC ACID GROUPS AND IMPLANTED METAL CATIONS - A proton exchange membrane comprises a hybrid inorganic-organic polymer that includes implanted metal cations. Acid groups are bound to the hybrid inorganic-organic polymer through an interaction with the implanted metal cations. An example process for manufacturing a proton exchange membrane includes sol-gel polymerization of silane precursors in a medium containing the metal cations, followed by exposure of the metal-implanted hybrid inorganic-organic polymer to an acid compound. | 01-13-2011 |
20110009505 | METHOD FOR DISCRIMINATING POLYMER COMPOUND MEMBRANE - A method for discriminating a polymer compound membrane, the method having selecting a polymer compound membrane which shows little time-dependent change in a relaxation time (T1ρ) when the T1ρ of the polymer compound membrane has been measured by using a solid-state NMR device with a magnetic field strength of 7.05 Tesla. | 01-13-2011 |
20110009506 | PREPARATION METHOD OF POLYBENZOXAZOLES BY THERMAL REARRANGEMENT, POLYBENZOXAZOLES PREPARED THEREBY, AND GAS SEPARATION MEMBRANE COMPRISING THE SAME - Disclosed herein are a method for preparing a benzoxazole-based polymer by thermal rearrangement, the benzoxazole-based polymer prepared by the method and a gas separation membrane comprising the polymer. More specifically, provided are a method for preparing a benzoxazole-based polymer by subjecting poly(hydroxyamide) as an intermediate to thermal treatment involving dehydration, the benzoxazole-based polymer obtained thereby and gas separation membrane comprising the polymer. The benzoxazole-based polymer of the present invention can be simply prepared by thermally rearrangement via thermal treatment at low temperatures, and thus exhibits superior mechanical and morphological properties and has well-connected microcavities. Due to showing excellent permeability and selectivity for various gases, the benzoxazole-based polymer is suited for application to gas separation membranes, in particular, gas separation membranes for small gases. | 01-13-2011 |
20110015283 | PROCESS FOR PRODUCING FLUOROPOLYMER, AND FLUORINATED ION EXCHANGE MEMBRANE - A polymerization medium having small ozone depletion potential and small global warming potential and having a small chain transfer constant is used, to efficiently produce a fluoropolymer having a high molecular weight and having excellent heat resistance, solvent resistance, chemical resistance, etc. | 01-20-2011 |
20110054050 | ION EXCHANGE MEMBRANE HAVING LAMELLAR MORPHOLOGY AND PROCESS OF MAKING THE SAME - An ion exchange membrane is prepared from a block copolymer comprising a hydrophobic polymer segment and a polar polymer segment. The ion exchange membrane is formed by placing a film layer in steam, water or an electric field at a temperature greater than about 40° C. for sufficient amount of time to develop a bicontinuous morphology. The ion exchange membrane is also formed from a film layer comprising a block copolymer and a solvent. The film layer is placed in an electric field at an elevated temperature and dried therein. The film layer is thereby converted into an ion exchange membrane with bicontinuous morphology. The ion exchange membrane prepared according to these processes exhibits improved mechanical and electrochemical properties. | 03-03-2011 |
20110077312 | METHOD TO IMPROVE THE SELECTIVITY OF POLYBENZOXAZOLE MEMBRANES - The present invention discloses a novel method to improve the selectivities of polybenzoxazole (PBO) membranes prepared from aromatic polyimide membranes for gas, vapor, and liquid separations. The PBO membranes that were prepared by thermal treating aromatic polyimide membranes containing between 0.05 and 20 wt-% of a poly(styrene sulfonic acid) polymer. These polymers showed up to 95% improvement in selectivity for CO | 03-31-2011 |
20110098369 | NANOCOMPOSITE ION EXCHANGE HYDROGELS - A method for preparing a nanocomposite ion exchange hydrogel and a nanocomposite ion exchange hydrogel are disclosed. A monomer is graft polymerized onto a carbohydrate to form a carbohydrate graft copolymer. Before, during, or after graft polymerizing, an adsorbent is modified with a cationic surfactant to form a surfactant modified adsorbent. Next, the surfactant modified adsorbent is dispersed and entrapped in the carbohydrate graft copolymer and crosslinked to form a crosslinked carbohydrate graft copolymer. The crosslinked carbohydrate graft copolymer is then isolated. In some embodiments, the pH of the crosslinked carbohydrate graft copolymer can be adjusted. | 04-28-2011 |
20110098370 | SULFONATED POLY 2-(PHENYL ETHYL) SILOXANE POLYMER ELECTROLYTE MEMBRANES - The present invention provides polymer electrolyte membranes (PEM) based upon sulfonated poly 2-(phenyl ethyl)siloxane (SPPES) prepared in a one-pot procedure. This includes the SPPES homopolymer as well as random copolymer of SPPES with various non-sulfonated polysiloxanes. Copolymerization with poly 2-(phenyl ethyl)siloxane greatly improves the mechanical stability of the film compared to a SPPES homopolymer. Proton conductivity of the copolymer, though it is less than that of the homopolymer and Nafion, is comparable to other PEMs in the literature. Both SPPES based membranes show good water retention at temperature greater than 100° C., which indicates they may be suitable for use in high temperature PEM fuel cells. | 04-28-2011 |
20110098371 | Proton-Conducting Polymeric Poly(Arylene Ether)s with Pendant Phenyl Sulfonic Acids - Disclosed are sulfonated polymers of formula (I) or a salt thereof: wherein X is (a) or (b), R is hydrogen or an organic moiety, n is an integer from 10 to 10,000, p is 1 or 2, and m is 0 or 1 for a particular monomer unit such that the polymer has a degree of sulfonation of 0.50 or greater. Such polymers are useful in proton exchange membranes (PEMs) having high ion exchange capacity with higher proton conductivity than Nafion™, while having lower methanol permeability and lower water uptake than previously disclosed polymers. | 04-28-2011 |
20110105631 | Hydrophilic Polymer Membranes - A hydrophilic polymeric ionomer obtainable by reacting, in a solvent, components comprising a polymer and an ionic component selected from a strong acid or a strong base. The present invention also comprises methods of forming such membranes. | 05-05-2011 |
20110152388 | Multibranched polymer and method for producing the same - A multibranched polymer represented by the following formula (I), and a method for producing the multibranched polymer: | 06-23-2011 |
20110160319 | ORGANIC/INORGANIC HYBRID COMPOSITE PROTON EXCHANGE MEMBRANE - An organic/inorganic hybrid composite proton exchange membrane is provided. The proton exchange membrane includes an inorganic material of about 0.5-30 parts by weight and an organic material of about 99.5-70 parts by weight per 100 parts by weight of the proton exchange membrane. A surface area of the inorganic material is about 50-3000 m | 06-30-2011 |
20110166241 | POLYMER ELECTROLYTE MEMBRANE - Disclosed are a multi-block copolymer, its producing method and an electrolyte membrane using the same. The multi-block copolymer includes a hydrophobic block having a plurality of repeating units represented as chemical formula 1; and a hydrophilic block having a plurality of repeating units represented as chemical formula 2. The multi-block copolymer is acidified, and can be used to an electrolyte membrane and a fuel cell. The use of the multi-block copolymer as an electrolyte membrane ensures excellent dimensional stability. | 07-07-2011 |
20110172317 | SULFONATED POLYARYLENE COMPOUNDS, MEMBRANE MATERIAL MADE THEREFROM, METHOD FOR THE PRODUCTION THEREOF AND USE - The invention relates to the field of polymer chemistry and relates to sulfonated polyarylene compounds such as can be used for example in ion exchange membranes in fuel cells, as well as a method for the production thereof and the use thereof. The object of the present invention is to disclose hydrolytically and thermally resistant sulfonated polyarylene compounds with a defined degree and position of sulfonation, from which membrane materials with an improved resistance to hydrolysis can be produced. The object is attained through sulfonated polyarylene compounds according to at least one of the general formulas (I)-(IV). | 07-14-2011 |
20110178190 | COMB POLYMERS FOR SUPRAMOLECULAR NANOCONFINEMENT - Polymers including pendent hydrophobic groups and pendent proton transfer groups are shown to form nanostructured films exhibiting greatly increased proton conductivity compared with films prepared from corresponding polymers lacking hydrophobic groups. The polymers can include repeating units each of which has both a hydrophobic group and a proton transfer group. Alternatively, the polymers can be the product of copolymerizing a first monomer with at least one hydrophobic group and a second monomer with at least one proton transfer group. The polymers are useful for the preparation of fuel cell proton exchange membranes. | 07-21-2011 |
20110184076 | FULLERENE COMPOSITE MEMBRANES FOR DIRECT METHANOL FUEL CELL - For use in a DMFC, a proton-conducting membrane containing a proton-conducting host polymer and a functionalized fullerene having one or more proton accepting or proton donating functional groups selected from: >C[PO(OH) | 07-28-2011 |
20110190404 | FLUOROCARBON POLYMER MATERIAL AND METHOD FOR SYNTHESIZING - The invention relates to a fluorocarbon polymer material comprising a backbone with the following unit: | 08-04-2011 |
20110196051 | Electrolyte membrane using polybenzoxazine based compound - An electrolyte membrane includes a cross-linked reaction product of a benzoxazine monomer and a cross-linkable compound. The electrolyte membrane is impregnated with 300 to 600 parts by weight of phosphoric acid based on 100 parts by weight of the electrolyte membrane, and has a yield strain 0.5% or less, and a yield stress 0.3 Mpa or less. The cross-linked material has a strong acid trapping ability with respect to the benzoxazine compound and excellent mechanical properties due to a cross-linkage. Also, the solubility of the cross-linked material in polyphosphoric acid is low, thereby showing excellent chemical stability. Accordingly, when the cross-linked material is used, an electrolyte membrane having an excellent liquid supplementing ability and excellent mechanical and chemical stability at a high temperature can be obtained. The cross-linked material can be obtained by a simple polymerization process by combining a benzoxazine monomer and a crosslinkable compound and by using heat instead of using a polymerization initiator or a cross-linking agent. | 08-11-2011 |
20110218255 | ARYLENE-FLUORINATED-SULFONIMIDE IONOMERS AND MEMBRANES FOR FUEL CELLS - The preparation of aromatic sulfonimide polymers useful as membranes in electrochemical cells is described. | 09-08-2011 |
20110218256 | PARTIALLY FLUORINATED CYCLIC IONIC POLYMERS AND MEMBRANES - Ionic polymers are made from selected partially fluorinated dienes, in which the repeat units are cycloaliphatic. The polymers are formed into membranes. | 09-08-2011 |
20110224314 | ANION EXCHANGE POLYMERS, METHODS FOR MAKING AND MATERIALS PREPARED THEREFROM - A novel anion exchange polymer is provided. A method of making the anion exchange polymer includes reacting a tertiary amine, an acid inhibitor and a polyepoxide to form a quaternary ammonium monomer and polymerizing the quaternary ammonium monomer in the presence of a catalyst. The exchange polymer is prepared without using alkyl halides and can be used to make improved ion exchange materials that are chemically resistant and non-fouling. | 09-15-2011 |
20110230575 | CROSSLINKABLE TRIFLUOROSTYRENE POLYMERS AND MEMBRANES - Described herein is a crosslinkable polymer based on trifluorostyrene, and its use in polymer electrolyte membranes thereof. | 09-22-2011 |
20110288187 | PROTON-CONDUCTING MEMBRANE AND THE USE OF THE SAME - The present invention relates to a novel proton-conducting polymer membrane based on polyazoles which can, because of its excellent chemical and thermal properties, be used in a variety of ways and is particularly useful as polymer electrolyte membrane (PEM) to produce membrane electrode units for PEM fuel cells. | 11-24-2011 |
20120016043 | POLY(ARYLENE ETHER) COPOLYMER HAVING CATION-EXCHANGE GROUP, PROCESS OF MANUFACTURING THE SAME, AND USE THEREOF - The present invention relates to a poly(arylene ether) copolymer having an ion exchange group, particularly a positive ion exchange group, a method for manufacturing the same, and use thereof. In the poly(arylene ether) copolymer having the ion exchange group according to the present invention, physical characteristics, ion exchanging ability, metal ion adsorption ability and a proccessability are excellent, and thus the copolymer can be molded in various shapes and can be extensively applied to various fields such as recovering of organic metal, air purification, catalysts, water treatment, medical fields and separating of proteins. | 01-19-2012 |
20120016044 | PROCESS TO PREPARE FLUOROPOLYMER DISPERSIONS AND MEMBRANES - Described is a process to prepare fluoropolymer organic-liquid dispersions containing a homogeneous mixture of reacted and unreacted sulfonyl halide groups. The dispersions are useful in the preparation of crosslinked membranes. | 01-19-2012 |
20120029098 | PROTON CONDUCTING MATERIALS - Materials are provided that may be useful as ionomers or polymer ionomers, including compounds including bis sulfonyl imide groups which may be highly fluorinated and may be polymers. | 02-02-2012 |
20120035280 | ANION EXCHANGE MEMBRANE AND METHOD FOR PRODUCING SAME - There is provided an anion exchange membrane comprising, as a main element, a block copolymer having a vinyl alcohol polymer block and a cationic-group containing polymer block as components and which is subjected to a crosslinking treatment. An anion exchange membrane is produced by heating a film obtained from a solution of the block copolymer at a temperature of 100° C. or more, crosslinking the film with a dialdehyde compound in water, an alcohol or a mixture of these under an acidic condition and then washing the film with water. Thus, there can be provided an anion exchange membrane in which organic fouling can be prevented and which exhibiting excellent basic properties such as a membrane resistance and an ionic transport number and excellent membrane strength. | 02-09-2012 |
20120041084 | Carboxylated Polymers of Intrinsic Microporosity (PIMs) with Tunable Gas Transport Properties - A film of a carboxylated polymer of formula (I): wherein the sum of x, y and z is an integer from 10 to 10,000 and degree of hydrolysis is 0.05 or greater provides gas separation materials in which the degree of hydrolysis may be used to tune the selectivity of the gases to an optimal required range. Such films may be prepared by casting a film of a polymer of formula (II): wherein n is an integer from 10 to 10,000, and hydrolyzing all or a portion of the —CN groups to form —COOH groups. | 02-16-2012 |
20120083541 | AROMATIC POLYETHER SULFONE BLOCK COPOLYMERS - An aromatic polyether sulfone block copolymer comprises hydrophilic segments which have sulfonic acid groups and hydrophobic segments which have no sulfonic acid groups, wherein the proportion by weight of hydrophilic segments is from 0.02 to 0.35. | 04-05-2012 |
20120101173 | METHOD FOR THE PRODUCTION OF A HIGH-MOLECULAR POLYAZOL - A process for preparing a polyazole with an inherent viscosity, measured in at least 96% sulfuric acid at 25° C., greater than 2.9 dl/g, comprising the steps of
| 04-26-2012 |
20120108684 | COMPACTED POLYELECTROLYTE COMPLEXES AND ARTICLES - A method is described for producing an osmotically compacted polyelectrolyte complex having a first region and a second region, the first region having a greater modulus than the second region. The method comprises contacting an article comprising polyelectrolyte complex to a solution comprising a preferred osmolyte of concentration sufficient to compact said polyelectrolyte complex and terminating the compaction process before the entire article is osmotically compacted. | 05-03-2012 |
20120108685 | COMPACTED POLYELECTROLYTE COMPLEXES AND ARTICLES - A method is described for producing an osmotically compacted polyelectrolyte complex having a first region and a second region, the first region having a greater modulus than the second region. The method comprises contacting an article comprising polyelectrolyte complex to a solution comprising a preferred osmolyte of concentration sufficient to compact said polyelectrolyte complex and terminating the compaction process before the entire article is osmotically compacted. | 05-03-2012 |
20120136077 | FLUORINATED COPOLYMERS, MEMBRANES PREPARED USING THE LATTER AND FUEL CELL DEVICE INCLUDING SAID MEMBRANES - A fluorinated copolymer including at least one recurrent unit of the following formula (I): | 05-31-2012 |
20120142790 | POLY(ARYLENE ETHER) COPOLYMER HAVING CATION-EXCHANGE GROUP, PROCESS OF MANUFACTURING THE SAME, AND USE THEREOF - The present invention relates to a poly(arylene ether) copolymer having a cation exchange group, a method for manufacturing the same, and use thereof. The poly(arylene ether) copolymer having the cation exchange group according to the present invention has excellent physical characteristics, ion exchanging capacity, metal ion adsorption capacity and a processability, and thus can be molded in various shapes and can be extensively applied to various fields such as recovering of organic metal, air purification, catalysts, water treatment, medical fields and separating of proteins. | 06-07-2012 |
20120142791 | Solid Electrolyte Membrane for Fuel Cell and Process for Producing Same - Disclosed are a solid electrolyte membrane for fuel cells, which is characterized by that there has been used a silicone resin obtained by subjecting a methide series siloxane compound having a specific, strong acid bis(perfluoroalkanesulfonyl)methide moiety, a specific polysiloxane compound, and a specific silane compound to a cross-linking reaction, and its production process. This membrane has heat resistance, is superior in chemical stability, has a good proton conductivity even under a low water content condition, and has a low methanol permeability. | 06-07-2012 |
20120165419 | ACID BLOCK ANION MEMBRANE - Acid block anionic selective polymeric membranes are provided of the type having a woven or non-woven cloth reinforcing structure. The polymer of the membrane is prepared by the process comprising copolymerizing components I, II, and III wherein I is an ethylenically unsaturated aliphatic or aromatic tertiary or quaternary amine monomer. II is a cross-linking monomer, and III is vinylbenzyl chloride. The reaction is conducted in the presence of a free radical polymerization initiator. Additionally, anionic exchange membranes of the type used in electrodialysis apparatus are disclosed and comprise a woven or nonwoven cloth that is impregnated with a copolymer comprising the reaction products of components I, II, and III. | 06-28-2012 |
20120165420 | Process for Preparing Composite Membranes - A process for preparing a composite membrane comprising acidic and/or basic groups comprising the following steps:
| 06-28-2012 |
20120172461 | LOW PERMEABILITY COMPOSITE PROTON EXCHANGE MEMBRANE INCLUDING ORGANIC-INORGANIC HYBRID - A composite proton exchange membrane is made up of dispersed organized graphene in ion conducting polymer as a fuel barrier material. The composite proton exchange membrane includes an inorganic material of 0.001-10 wt % and an organic material of 99.999-90 wt %. The inorganic material is a graphene derivative with two-dimensional structure. The organic material includes a polymer material with sulfonic acid group. | 07-05-2012 |
20120172462 | Novel Interpenetrating Polymer Networks and Uses Thereof - Interpenetrating polymer networks comprising a first network of polymer A formed from monomers, at least one of which contains an aromatic group functionalized with a cation-exchange group, and a second network of polymer B formed from monomers, at least one of which contains a fluorinated group (R | 07-05-2012 |
20120178834 | Membranes, Coatings and Films and Methods for Their Preparation - There are provided herein selective membranes, such as composite membranes, and/or films and processes for their preparation. The membranes and/or films have a given morphology which may be stabilized, for example against swelling and chemical degradation, by covalent crosslinking and optionally, in addition, by hydrophobization. There is provided a membrane and/or film and a process for the preparation thereof, the membrane and/or film include an ionomer and/or polyelectrolyte crosslinked through aryl-aryl (—Ar-Ar-), aryl-ether-aryl (—Ar—O—Ar—) and/or aryl-sulfide-aryl (—Ar—S—Ar—) bonds. | 07-12-2012 |
20120178835 | USE OF BRANCHED ADDITION COPLYMERS IN FILMS AND MEMBRANES - The present invention relates to branched addition copolymers which can be cured post synthesis to form films or membranes, methods for their preparation, compositions comprising such copolymers and their use in film or membrane preparation. | 07-12-2012 |
20120214882 | Poly(Perfluorocyclobutane) Ionomer with Phosphonic Acid Groups for High Temperature Fuel Cells - A polymer for ion conductor applications includes a polymer segment having a perfluorocyclobutyl moiety and a phosphonated aryl group and a polymer segment a perfluorocyclobutyl moiety without phosphonated aryl group. The polymer is formed into an ion conducting membrane for fuel cell applications. | 08-23-2012 |
20120214883 | METHOD FOR PRODUCING SOLID ELECTROLYTE FILM - Disclosed is a method for producing a solid electrolyte film, which comprises: a formation step (A) in which a film that contains an electrolyte polymer is formed on a base; a separation step (B) in which the film formed on the base is separated from the base; a water washing step (C) in which the film obtained in the separation step (B) is water washed, while applying a tension (T | 08-23-2012 |
20120220673 | ANION EXCHANGE MEMBRANES - A method for preparing an anion exchange membrane suitable for use in an alkaline fuel cell and particularly in a direct borohydride fuel cell, involves radiation grafting a hydrocarbon polymer film with a monomer and adding a quaternising agent. The degree of grafting is improved by mixing the monomer with a diluent comprising alcohol and a hydrocarbon solvent. | 08-30-2012 |
20120225958 | PROTON CONDUCTING ELECTROLYTES WITH CROSS-LINKED COPOLYMER ADDITIVES FOR USE IN FUEL CELLS - A proton conducting polymer electrolyte comprising a proton conducting ionomer cross-linked with an amount of a copolymer additive comprising cross-linking functional groups and other functional groups (e.g. proton carriers, chelating agents, radical scavengers) shows improved durability over the ionomer alone and provides for more stable inclusion of these other functional groups. The copolymer additive comprises at least two types of metal oxide monomers, one having cross-linking functional groups and the other having the other functional groups. | 09-06-2012 |
20120225959 | PROTON-CONDUCTIVE MEMBRANE - An anhydrous, proton-conductive medium comprises a poly(amic acid)-based polyimide and at least one phosphorus compound from the group consisting of phosphorus oxides and phosphoric acids. The precursor solution for the polyimide is a mixture of a phosphorus oxide and a poly(amic acid). A suitable phosphorus oxide has the formula P | 09-06-2012 |
20120225960 | SULFONATED POLY(ARYL ETHER) MEMBRANE INCLUDING BLEND WITH PHENOL COMPOUND - A membrane comprising a blend of a sulfonated poly(aryl ether) and a phenol compound along with methods for making and using the same. Many additional embodiments are described including applications for such membranes. | 09-06-2012 |
20120238648 | ANION EXCHANGE POLYELECTROLYTES - Provided according to some embodiments of the invention are anion exchange polyelectrolytes that include an at least partially fluorinated polyaromatic polymer backbone; and at least one cationic functional group pendant therefrom. Also provided are anion exchange membranes (AEMs) formed from at least one anion exchange polyelectrolyte according to an embodiment of the invention, and fuel cells including such AEMs. | 09-20-2012 |
20120252909 | METHOD FOR MECHANICAL STABILIZATION OF NITROGEN-CONTAINING POLYMERS - The invention relates to a process for preparing mechanically stabilized polyazole polymers. The process includes the steps of: a) producing a film comprising polyazoles with at least one amino group in a repeat unit, b) treating the film from step a) with a solution comprising (i) at least one acid and (ii) at least one stabilizing reagent, and c) performing the stabilization reaction in the membrane obtained in step directly or in a subsequent membrane processing step by heating to a temperature greater than 60° C. The stabilizing reagent contains at least one compound which has at least one aldehyde group and at least one hydroxyl group; or at least one hemiacetal group; or at least one acetal group. These polyazole polymer membranes have a high conductivity and a good mechanical stability and are suitable for applications in fuel cells. | 10-04-2012 |
20120259027 | Curable Compositions And Membranes - A curable composition comprising: (i) 2.5 to 50 wt % crosslinker comprising at least two acrylamide groups; (ii) 20 to 65 wt % curable ionic compound comprising an ethylenically unsaturated group and an anionic group; (iii) 15 to 45 wt % solvent; and (iv) 0 to 10 wt % of free radical initiator; wherein the molar ratio of (i):(ii) is 0.1 to 1.5. The compositions are useful for preparing ion exchange membranes. | 10-11-2012 |
20120270958 | Ethanol Stable Polyether Epoxy Based Membrane for Aromatics Separation - The present invention is directed to a membrane for ethanol and aromatics separation that is stable in an alcohol containing environment. The membrane is a polyether epoxy resin having an aliphatic substituted epoxide. The invention also teaches a method to control the flux and selectivity of the membrane. | 10-25-2012 |
20120277332 | ORGANIC SUPERACID MONOMERS CONTAINING A BIS-SULFONIC ACID GROUP AND METHODS OF MAKING AND USING THE SAME - One embodiment includes methods of adding two sulfonic acid groups to molecules having at least two cyclic groups. | 11-01-2012 |
20120289616 | PROCESS FOR STABILIZING FLUOROPOLYMER HAVING ION EXCHANGE GROUPS - The invention pertains to a process for stabilizing a semi-crystalline fluoropolymer comprising ion exchange groups, said process comprising: suspending at least one semi-crystalline fluoropolymer having ion exchange groups [polymer (I)] in at least one fluorinated organic dispersing medium [medium (M)] so as to obtain a dispersion (D) of polymer (I) in a dispersing medium (M); contacting said dispersion (D) with fluorine under irradiation with U. V. radiation so as to obtain a stabilized polymer. Still objects of the invention are a stable semi-crystalline fluoropolymer as above defined having a low amount of unstable ends groups of —COF type, the use of the stabilized fluoropolymer obtained by the process or of the stable fluoropolymer in fuel cells devices, a membrane and a membrane-electrode assembly comprising said fluoropolymers. | 11-15-2012 |
20120309857 | POLYARYLENE-BASED POLYMER, PREPARATION METHOD FOR THE SAME, AND POLYMER ELECTROLYTE MEMBRANE FOR FUEL CELL USING THE POLYMER - Disclosed herein is a polyarylene-based polymer, a preparation method for the same, and a polymer electrolyte membrane for fuel cell using the polymer. The polyarylene-based polymer, which is designed to have long side chains of a hydrophilic moiety and dense sulfonic acid groups, may improve the formation of ion channels when fabricating a polymer membrane and also ensures good chemical stability of the hydrophilic moiety and good dimensional stability against water. Further, the preparation method of the present invention simplifies production of the polymer, and polymer electrolyte membranes using the polymer exhibits improved properties as a polymer electrolyte membrane for a fuel cell, such as high proton conductivity, even under an atmosphere of low water uptake, and good dimensional stability against a long-term exposure to water. | 12-06-2012 |
20130012607 | PROTON-CONDUCTING MEMBRANE AND ITS USE - The present invention relates to novel polyazoles, a proton-conducting polymer membrane based on these polyazoles and its use as polymer electrolyte membrane (PEM) for producing membrane-electrode units for PEM-fuel cells, and also other shaped bodies comprising such polyazoles. | 01-10-2013 |
20130090396 | ION EXCHANGE COMPOSITIONS, METHODS FOR MAKING AND MATERIALS PREPARED THEREFROM - An ion exchange polymer composition is provided, which includes a primary crosslinker and a secondary crosslinker. The primary crosslinker includes a crosslinked ionic monomer including a quaternary ammonium group. A method for making the ion exchange polymer composition and materials prepared from the ion exchange polymer composition are also provided. | 04-11-2013 |
20130090397 | SEMI-INTERPENETRATING POLYMER NETWORK - Semi-interpenetrating polymeric networks are described. More specifically, the semi-interpenetrating polymeric networks include at least two polymers that are closely associated. The first polymer is an ionic polymer that is not crosslinked. The second polymer is a cross-linked polymer that can be either another ionic polymer or a non-ionic polymer. Methods of making the semi-interpenetrating polymeric networks, articles containing the semi-interpenetrating polymeric networks, and methods of using the semi-interpenetrating polymeric networks are also described. The semi-interpenetrating polymeric networks can function as ion exchange resins. | 04-11-2013 |
20130096214 | COMPOSITE HAVING ION EXCHANGE FUNCTION AND PREPARATION METHOD AND USE THEREOF - A composite having ion exchange function, preparation method and use thereof are provided. The composite is formed by compounding ion exchange resin with fluorine-containing polymer porous membrane, wherein the nitrile groups in the ion exchange resin react with the nitrile groups grafted on the fluorine-contained polymer porous membrane to form triazine ring crosslinked structure. The composite has excellent mechanical property and gas impermeability, high ion exchange capacity and high electroconductivity. | 04-18-2013 |
20130131200 | MAKING A LITHIUM ION BATTERY SEPARATOR - A porous polymer separator for use in a lithium ion battery is formed by a temperature-induced phase separation method. The porous polymer separator includes a polymer matrix having opposed major faces and a network of pore openings that extends between the major faces and permits intrusion of a lithium-ion conducting electrolyte solution. As part of the temperature-induced phase separation method, a single phase polymer solution that includes a polymer material dissolved in a miscible mixture of a real polymer solvent and a polymer non-solvent is prepared at an elevated temperature above room temperature. A film is then formed from the single phase polymer solution and cooled to phase-separate the polymer material into a solid polymer precipitate. Additional polymer non-solvent is then used to remove the real polymer solvent from the solid polymer precipitate followed by drying. | 05-23-2013 |
20130131201 | SUPERACID FUNCTIONAL COMPOUNDS - The invention relates to a novel synthesis method for forming superacid functional molecules that include monomers, as well as new polymers and copolymers formed from the monomers, and uses for these superacid molecules, polymers, and copolymers. The superacid molecules have an alpha,alpha-difluorosulfonic acid functionality that can be obtained by a reaction between various Grignard reagents and an alkyl(2-fluorosulfonyl)-1,1-difluoroacetate, such as methyl(2-fluorosulfonyl-1,1-difluoroacetate. The molecules, polymers and copolymers would be expected to have enhanced ion conductivity, and would be useful in a variety of applications, including as ion-conductive materials, surfactants, and ion exchange resins. | 05-23-2013 |
20130137784 | GRAFT COPOLYMERS - Graft copolymers of hydrophobic polymers and hydrophilic polymers, a method for their preparation, and their use in membranes for medical treatments such as hemodialysis, hemodiafiltration and hemofiltration, in membranes for water purification, and in membranes for bioprocessing. | 05-30-2013 |
20130165538 | ANIONIC EXCHANGE ELECTROLYTE POLYMER MEMBRANES - The present disclosure provides a membrane having a first major surface and a second major surface and including one or more anionic exchange electrolyte polymers. The membranes can be useful for selectively mass transporting molecules and/or ions. | 06-27-2013 |
20130197110 | SULPHUR-CONTAINING AND SULPHONATED AROMATIC PERFLUOROALKANE MONOMER - A sulphur-containing and sulphonated aromatic perfluoroalkane monomer is provided that can be used for the manufacture of a polymer membrane for a PEM-type fuel cell. The perfluoroalkane monomer is a functionalized polymer that has a structure corresponding to a formula (I): | 08-01-2013 |
20130203873 | CHEMICALLY RESISTANT MEMBRANES, COATINGS AND FILMS AND METHODS FOR THEIR PREPARATION - There is provided herein a membrane or film comprising one or more aromatic ionomers covalently crosslinked through aryl-aryl (—Ar—Ar—), aryl-ether-aryl (—Ar—O—Ar—), aryl-sulfide-aryl (—Ar—S—Ar—), aryl-sulfone-aryl bonds, or any combination thereof, wherein said one or more aromatic ionomers further comprises at least one electron withdrawing group adapted to improve oxidant resistance of said membrane or film. | 08-08-2013 |
20130231405 | AROMATIC PERFLUOROALKANE MONOMER - An aromatic perfluoroalkane monomer is provided that can be used for the manufacture of a polymer membrane for a PEM-type fuel cell. The perfluoroalkane monomer has a structure corresponding to a formula (I): | 09-05-2013 |
20130231406 | METAL-NEUTRALIZED SULFONATED BLOCK COPOLYMERS - The present disclosure relates to a process for neutralizing a sulfonated block copolymer with a metal compound, to metal-neutralized block copolymers, and to various articles comprising the metal-neutralized block copolymers, e.g., in form of a water vapor permeable membrane which comprises the metal-neutralized block copolymers. The present disclosure further relates to a means and a method for storing and stabilizing a polar component such as a metal compound in a non-polar liquid phase by immuring the polar component in micelles of the sulfonated block copolymer in the non-polar liquid phase. | 09-05-2013 |
20130237619 | PBI MODIFICATION AND CROSS-LINKING METHODS - The present invention relates to a method for modifying and cross-linking polybenzimidazoles, PBI. The polybenzimidazole reacts with a compound, which has a halogen and a double bond functionality and which comprises a halogen and an organic group to form modified polymers by means of a nucleophilic substitution of the amine proton of the benzimidazole functionality in a solution, and a functional group is connected via each resulting free double bond and/or the polymers that are thus modified are cross-linked. | 09-12-2013 |
20130245139 | REMOVAL OF PROTEIN AGGREGATES FROM BIOPHARMACEUTICAL PREPARATIONS IN A FLOW-THROUGH MODE - The present invention provides novel compositions and methods for removal of protein aggregates from a sample in a flow-through mode. | 09-19-2013 |
20130267616 | Polymerisation Method - A method of forming a polymer is provided, the method comprising: Providing a first monomer comprising one or more aromatic moieties, the first monomer comprising at least two amino groups, each of the amino groups being attached to an aromatic moiety; and contacting said first monomer with formaldehyde or a source of methylene. Polymers made by such a method and uses of such polymers are also described. | 10-10-2013 |
20130317128 | Process for Making a Monomer Solution for Making Cation Exchange Membranes - A method of making a monomer solution of styrene sulfonic acid or the pyridine salt of styrene sulfonic acid or mixtures of both in an organic solvent, said solution being suitable for producing cation exchange membranes. The method comprises the steps of dissolving a metal salt of styrene sulfonate in said organic solvent and pyridinium styrene sulfonate. The mixture solution is reacted under conditions that generate a salt byproduct precipitate and the reactant product solution is collected. Embodiments of the present invention provide for cation exchange membranes and processes for their manufacture. Membranes made by the processes described herein combine low resistance and high permselectivity which make them highly effective for membrane components in desalination of water by electrodialysis (ED), as a power generating sources in reverse electrodialysis and as separators in fuels cells. | 11-28-2013 |
20130324625 | PROCESS FOR TREATING THIOCYANATE CONTAINING AQUEOUS SOLUTIONS - The present invention generally relates to the field of water treatment, and in particular to industrial processes which generate aqueous solutions containing thiocyanate (SCN). The invention particularly relates to processes for treating aqueous solutions containing SCN and more specifically treatment processes to extract and remove SCN from said aqueous solutions. | 12-05-2013 |
20130338244 | ANIONIC EXCHANGE ELECTROLYTE POLYMER MEMBRANES - The present disclosure provides a membrane having a first major surface and a second major surface and including one or more anionic exchange electrolyte polymers. The membranes can be useful for selectively mass transporting molecules and/or ions. | 12-19-2013 |
20140005286 | Expandable Functional TFE Copolymer Fine Powder, Expanded Products and Reacted Products Therefrom | 01-02-2014 |
20140024728 | ANION EXCHANGE POLYMER ELECTROLYTES - Anion exchange polymer electrolytes that include guanidinium functionalized polymers may be used as membranes and binders for electrocatalysts in preparation of anodes for electrochemical cells such as solid alkaline fuel cells. | 01-23-2014 |
20140024729 | POLYMER ELECTROLYTE MEMBRANE CHEMICALLY BONDED WITH IONIC LIQUID AND FUEL CELL USING THE SAME - The present disclosure provides a polymer electrolyte membrane chemically bonded with an ionic liquid. More particularly, the present disclosure provides a polymer electrolyte membrane chemically bonded with an ionic liquid by reacting the ionic liquid with a novel polymer chain terminal. The polymer electrolyte membrane described herein has a high hydrogen ionic conductivity, even in a high-temperature and anhydrous environment. Additionally, the membrane displays electro-chemical and thermal stability. Moreover, the polymer electrolyte membrane may also be applied to a high-temperature and dry-out bio fuel cell. | 01-23-2014 |
20140031439 | FILLED NANOPOROUS POLYMER MEMBRANE COMPOSITES FOR PROTECTIVE CLOTHING AND METHODS FOR MAKING THEM - A new class of membranes for use in protective clothing. More specifically, the present invention relates to a polymer-polymer membrane with an ionic polymer located within the nanopores of a porous polymer host membrane. A method for making the polymer-polymer membranes involves filling porous polymers with ionic polymers. The porous polymers may be fabricated by a template synthesis which involves sorption. The ionic polymers may be filled in the nanopores of the porous polymer by plasma-induced graft copolymerization of the ionic polymer with the porous polymeric host membrane. | 01-30-2014 |
20140066528 | ANION EXCHANGE MEMBRANE AND PRODUCING METHOD THEREOF - A graft chain containing an N-vinylimidazole derivative is introduced into a polymer substrate by radiation graft polymerization to obtain an alkyl substituted imidazolium salt by a reaction with an alkyl halide, so that an anion exchange membrane with high alkaline durability, in which a nucleophilic substitution reaction and an elimination reaction are inhibited, is obtained. | 03-06-2014 |
20140073709 | FLUORINATED COPOLYMER AND ION EXCHANGE MEMBRANE - To provide a fluorinated copolymer which is capable of providing an ion exchange membrane having little adverse effect due to impurities in an alkali chloride aqueous solution on electrolysis of the alkali chloride aqueous solution. To use a fluorinated copolymer of a fluorinated monomer having a carboxylic acid type functional group with a fluorinated olefin, wherein the proportion of components having a common logarithm (log M) of a molecular weight M being from 2.0 to 3.5 is at most 10 mass % per 100 mass % of components having a common logarithm (log M) of a molecular weight M being at least 2.0, contained in a CClF | 03-13-2014 |
20140080930 | PROCESS FOR PRODUCING FLUORINATED COPOLYMER - To provide a process for producing a fluorinated copolymer which is capable of providing an ion exchange membrane which can suppress a decrease in current efficiency by impurities in an aqueous alkali chloride solution as a raw material on e.g. electrolysis of the alkali chloride aqueous solution. | 03-20-2014 |
20140088207 | POLYMERIZED IONIC LIQUID BLOCK COPOLYMERS AS BATTERY MEMBRANES - The present invention is directed to compositions useful for use in separators for use in lithium ion batteries, and membranes, separators, and devices derived therefrom. | 03-27-2014 |
20140107237 | CATION-STRUNG SIDE CHAIN POLYMERS USEFUL IN HYDROXIDE/ANION EXCHANGE MEMBRANES - This invention provides a family of cation-strung polymers capable of forming membranes having exceptional hydroxide ionic conductivity as well as low water uptake and methods of making the same. The invention also provides for using these cation-strung polymers to manufacture membranes useful in HEMFC fuel cells and other devices such as electrolysis, solar hydrogen generation, redox flow battery, dialysis, reverse osmosis, forward osmosis, pervaporation, ion exchange, sensor, and gas separation. | 04-17-2014 |
20140200280 | ANION EXCHANGE MEMBRANE AND METHOD FOR PRODUCING SAME - There is provided an anion exchange membrane comprising, as a main element, a block copolymer having a vinyl alcohol polymer block and a cationic-group containing polymer block as components and which is subjected to a crosslinking treatment. An anion exchange membrane is produced by heating a film obtained from a solution of the block copolymer at a temperature of 100° C. or more, crosslinking the film with a dialdehyde compound in water, an alcohol or a mixture of these under an acidic condition and then washing the film with water. Thus, there can be provided an anion exchange membrane in which organic fouling can be prevented and which exhibiting excellent basic properties such as a membrane resistance and an ionic transport number and excellent membrane strength. | 07-17-2014 |
20140213672 | PHOSPHONIC ACID-CONTAINING BLENDS AND PHOSPHONIC ACID-CONTAINING POLYMERS - The invention relates to blends and blend membranes from low-molecular hydroxymethylene-oligo-phosphonic acids R—C(PO | 07-31-2014 |
20140343177 | BLOCK COPOLYMERS, THEIR MANUFACTURE AND THEIR USE - A functionalized block copolymer polymerized using vinylbenzylamino derivative monomers for use in such applications as anionic exchange membranes. | 11-20-2014 |
20140357739 | Formation of Hydrophilic Polymer Membranes Using a Bronsted Base - A method of forming a hydrophilic polymer is disclosed. The method can include: reacting a monomer comprising an acid group with a Bronsted base to form an ionic liquid; polymerising the ionic liquid with at least one other monomer; and converting the ionic liquid back to the acid group after polymerisation. Also disclosed are hydrophilic polymers and membrane electrode assemblies formed using the above method. | 12-04-2014 |
20140357740 | RESILIENT CATION EXCHANGE MEMBRANES - A resilient cation exchange membrane including a porous matrix impregnated with a cross-linked homogenous ion-transferring polymer that fills the pores and substantially covers the surfaces of the porous matrix. The cross-linked homogenous ion-transferring polymer formed by polymerizing a homogeneous solution including (i) a hydrophilic ionic monomer selected from a group consisting of 2-acrylamido-2-methyl-1-propanesulfonic acid, 2-acrylamido-2-methyl-1-propanesulfonic acid salts, sodium 4-vinylbenzenesulfonate, and 3-sulfopropyl acrylate potassium, with (ii) a hydrophobic cross-linking oligomer selected from a group consisting of polyurethane oligomer diacrylate, polyester oligomer diacrylate, epoxy oligomer diacrylate, polybutadiene oligomer diacrylate, silicone diacrylate, dimethacrylate counterparts thereof, polyurethane oligomers having three or more vinyl groups, polyester oligomers having three or more vinyl groups, and mixtures thereof. | 12-04-2014 |
20140378561 | Curable Compositions and Membranes - A membrane obtainable from curing a composition comprising (i) a curable compound comprising at least two acrylic groups and a quaternary ammonium group; (ii) solvent; and optionally (iii) a curable compound having one ethylenically unsaturated group. | 12-25-2014 |
20150073063 | ANION-CONDUCTING POLYMER - Disclosed herein are anion-conducting polymers that comprise a cationic benzimidazolium and imidazolium moieties. Methods of forming the polymers and membranes comprising the polymers are also provided. | 03-12-2015 |
20150105481 | Curable Compositions and Membranes - A process for preparing a membrane comprising applying a curable composition to a porous support and curing the composition, wherein the composition comprises: a) a curable ionic compound; b) a first crosslinking agent; c) a second crosslinking agent; d) an inert solvent; and e) optionally a free radical initiator; wherein the second crosslinking agent has a melting point below 80° C. Also claimed are the compositions and membranes obtainable by using the process. | 04-16-2015 |
20150133570 | CROSSLINKED SPEEK CATION EXCHANGE MEMBRANE HAVING IMPROVED CHEMICAL STABILITY BY RADIATION AND METHOD OF PREPARING THE SAME - Provided is a method of preparing a crosslinked sulfonated poly(ether ether ketone) (SPEEK) cation exchange membrane including: preparing a crosslinker mixture of a first crosslinker containing two or more vinyl oxy groups and a second crosslinker containing three or more vinyl groups; preparing a mother liquor containing the crosslinker mixture, a SPEEK polymer substituted with sodium, and a solvent; and casting the mother liquor and then irradiating radiation thereon. | 05-14-2015 |
20150298116 | MIXED METAL OXIDIC NANO SHEETS COATED MONOLITHIC CATALYSTS USEFUL FOR THE DECOMPOSITION OF TOXIC N2O AND A PROCESS FOR THE PREPARATION THEREOF - The present invention describes process of preparation of inter-polymer film of p-methylstyrene-co-divinylbenzene and its conversion into anion exchange membrane through a greener route which dispenses with the use of chloromethyl ether. The membrane with polyethylene binder is shown to have equivalent or even superior performance to anion exchange membrane prepared from styrene-co-divinylbenzene/polyethylene through chloromethyl ether route. | 10-22-2015 |
20150307654 | Poly(phenylene alkylene)-based Ionomers - A composition and method of forming a composition including a compound including a poly(phenylene) backbone represented by the following formula: | 10-29-2015 |
20150311555 | DIBENZYLATED POLYBENZIMIDAZOLE BASED POLYMER AND METHOD FOR PREPARING THE SAME - A polybenzimidazole based polymer in which substituted or non-substituted benzyl groups are introduced to the two nitrogen atoms of benzimidazole ring. The benzimidazole ring is not decomposed by the attack of hydroxide ions but shows excellent alkali resistance, and thus maintains high ion conductivity. The polybenzimidazole based polymers are particularly useful for not only solid alkali exchange membrane fuel cells (SAEMFC) but also various industrial fields in which polybenzimidazole based polymers are used. | 10-29-2015 |
20150328631 | Electrospinning Solution, Polyvinyl Alcohol Nanofibers and Ion-Exchange Membrane - An ion-exchange membrane is provided, and the fibers of the ion-exchange membrane are obtained by electrospinning. The electrospinning solution contains 100 parts by weight of polyvinyl alcohol (PVA), 10-100 parts by weight of a modifier, 10-100 parts by weight of an ion exchanger, and 100-2,500 parts by weight of water. The modifier has a reactive group that can react with the hydroxyl groups of the PVA. The ion exchanger has a polar functional group that can form hydrogen bonds with the hydroxyl groups of the PVA, and has an anion group that can provide ion-exchange ability. | 11-19-2015 |
20150376360 | MODIFICATION OF DRAWN FILM - The Invention relates to a drawn polymer film, comprising (A) a polymer or polymer blend and at least (B) one additional component with an average particle diameter of between 0.1 and 15 μm, which by means of (C) one or several secondary treatment steps is processed to form a membrane after being drawn. The average particle diameter of component (B) ranges between 0.1 and 15 μm, preferably 0.5-8.0 μm, with the range between 1.0 and 7.0 μm being particularly preferred. The membranes are used for alkene-alkane separation, electrodialysis, the desalinisation of seawater, in fuel cell applications and other membrane applications. | 12-31-2015 |
20160030894 | Resilient Anion Exchange Membranes Prepared By Polymerizing A Composition - A resilient anion exchange membrane including a homogeneous cross-linked ion-transferring polymer substantially filling pores and substantially covering surfaces of a porous substrate, wherein the resilient anion exchange membrane is prepared by polymerizing a composition including a quaternary ammonium cationic surfactant monomer, a crosslinking monomer including two or more ethylenic groups, a free radical initiator, and a solvent. | 02-04-2016 |
20160067654 | ION EXCHANGE MEMBRANES CONTAINING INORGANIC PARTICLES - An ion exchange membrane and a method of making it. The membrane may be used, for example, in an electrodialysis module or electrochemical cell. The membrane comprises an ion exchange polymer and inorganic particles preferably linked to the ion exchange polymer. To make a membrane, inorganic particles are mixed into an ion exchange membrane pre-cursor. A polymerization initiator or catalyst is then added and the resulting mixture is placed in a form and cured. The inorganic particles may comprise, for example, an oxidized form of graphite such as graphite oxide. The ion exchange polymer may comprise an ionic monomer, containing a quaternary ammonium group for anion exchange or a sulfonate group for cation exchange, along with a crosslinking co-monomer containing polymerizable diacrylic functionalities. The membrane is self-supporting and can be made without a supporting fabric. | 03-10-2016 |
20160129436 | Sulfonated Polyethylene - A sulfonated polyethylene is achieved where a polymethylene backbone with substituted methylene units having one or two sulfonic acid groups or salts of the sulfonic acid groups periodically, quasiperiodically, or quasirandomly separated from each other by unsubstituted methylene units along the polymer backbone. The sulfonated polyethylene is prepared by suspending a sulfonated ester polyethylene in a polar aprotic non-solvent, whereupon the addition of a strong base saponifies the esters with the dissolving of the resulting sulfonated polyethylene having salts of sulfonic acid groups. | 05-12-2016 |
20160137796 | IONOMERIC CROSS-LINKERS AND MEMBRANES FORMED THEREFROM - The present invention is the use of a compound comprising two or more covalently bonded polymerisable vinyl groups and one or more covalently bonded ionic groups selected from a quaternary ammonium group; a quaternary phosphonium group; or a tertiary sulphonium group, as an ionic cross-linker. The cross-linkers of the invention may be used to form an ionomer membrane. Methods for forming the cross-linkers of the invention are also disclosed. | 05-19-2016 |
20160137797 | Curable Compositions and Membranes - A composition comprising: a) 5 to 65 wt % of curable compound comprising one ethylenically unsaturated group and at least one anionic group; b) 2.5 to 70 wt % of crosslinking agent comprising at least two acrylic groups; c) a tertiary amine; and d) 0 to 45 wt % of inert solvent; wherein the molar ratio of component c) to a) is at least 0.7. Also described are a process for making composite membranes and the resultant membranes. | 05-19-2016 |
20160158692 | RESIN COMPOSITION AND CARBON DIOXIDE GAS SEPARATION MEMBRANE - The present invention relates to a resin composition including a substance capable of reacting reversibly with a carbon dioxide gas, and a hydrocarbon-based polymer; a carbon dioxide gas separation membrane obtained from the resin composition; a carbon dioxide gas separation membrane module including the separation membrane; and a carbon dioxide gas separation apparatus including at least one type of the module. | 06-09-2016 |
20160177006 | ION EXCHANGE FILM, COMPOSITION FOR FORMING ION EXCHANGE FILM, AND PRODUCTION METHOD FOR ION EXCHANGE FILM | 06-23-2016 |
20160177043 | ANION EXCHANGE MEMBRANE FOR ELECTRODIALYSIS APPLICATIONS AND PROCESS FOR THE PREPARATION THEREOF | 06-23-2016 |
20160193599 | ANION-CONDUCTING POLYMER | 07-07-2016 |
20220134288 | BORON-CONTAINING POROUS MEMBRANES AND METHODS OF USE THEREOF - A proton exchange membrane includes a porous structural framework and a boron-based acid group bonded to the porous structural framework. The porous structural framework may be formed of an amorphous or crystalline inorganic material and/or a synthetic or natural polymer. The boron-based acid group may be a tetravalent boric acid derivative, such as a cyclic boric acid derivative, borospiranic acid, or a borospiranic acid derivative. The boron-based acid group may be the reaction product of boric acid or a boric acid derivative and a poly-hydroxy compound. | 05-05-2022 |