Abstract: An electrolyte membrane is prepared from a liquid composition comprising at least one member selected from the group consisting of trivalent cerium, tetravalent cerium, bivalent manganese and trivalent manganese; and a polymer with a cation-exchange group. The liquid composition is preferably one containing water, a carbonate of cerium or manganese, and a polymer with a cation-exchange group, and a cast film thereof is used as an electrolyte membrane to prepare a membrane-electrode assembly. The present invention successfully provides a membrane-electrode assembly for polymer electrolyte fuel cells being capable of generating the electric power in high energy efficiency, having high power generation performance regardless of the dew point of the feed gas, and being capable of stably generating the electric power over a long period of time.

Abstract: The present disclosure relates to a method for preparing sulfonated polyarylene ether sulfone copolymer used in fabricating an electrolyte polymer membrane which is core material, the method comprising: A) mixing monomers, 4,4?-dihydroxydiphenyl; bis(4-chlorophenyl)sulfone or bis(4-fluorophenyl)sulfone; and 3,3?-disulfonated-4,4?-chlorodiphenyl sulfone with K2CO3; B) dissolving said mixture in a reaction solvent, i.e. N,N-Dimethylacetamide; C) reacting said dissolved mixture for 16˜20 hours at a temperature of 160˜190° C.; and D) precipitating, cleaning and filtering, and then drying said reactant.

Abstract: Solid anion exchange polymer electrolytes include chemical compounds comprising a polymer backbone with side chains that include guanidinium cations.

Abstract: 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.

Abstract: An ion exchangeable mixture containing a polymeric compound consisting of an ion exchange resin, an acrylamide mixture containing at least one bisacrylamide and at least one acrylamide, and a copolymer obtained by reacting the polymeric compound with the acrylamide mixture, and a method of producing the same are provided. The ion exchangeable membrane produced by using the ion exchangeable mixture has significantly smaller electric resistance than conventional ion exchangeable membranes, and has excellent selective permeability because the ion exchangeable membrane is electrically charged. The ion exchangeable membrane can be produced under very mild production conditions, and thus can be produced very easily. Furthermore, the ion exchangeable membrane can be also formed into film during a crosslinking reaction in a solvent of water, and thus is advantageous in that the ion exchangeable membrane can be freely produced into desired sizes, shapes and forms.

Abstract: A fluorine-containing polymer segment includes at least one substituent for proton transfer that has one or more fluorine atoms. The fluorine-containing polymer segment is useful for forming hydrophilic polymer blocks that are used in block copolymers. Block copolymers useful for fuel cell applications incorporate the hydrophilic polymer blocks formed from the fluorine containing polymer segments.

Abstract: Solid anion exchange polymer electrolytes and compositions comprising chemical compounds comprising a polymeric core, a spacer A, and a guanidine base, wherein said chemical compound is uniformly dispersed in a suitable solvent and has the structure: wherein: i) A is a spacer having the structure O, S, SO2, —NH—, —N(CH2)n, wherein n=1-10, —(CH2)n—CH3—, wherein n=1-10, SO2-Ph, CO-Ph, wherein R5, R6, R7 and R8 each are independently —H, —NH2, F, Cl, Br, CN, or a C1-C6 alkyl group, or any combination of thereof; ii) R9, R10, R11, R12, or R13 each independently are —H, —CH3, —NH2, —NO, —CHnCH3 where n=1-6, HC?O—, NH2C?O—, —CHnCOOH where n=1-6, —(CH2)n—C(NH2)—COOH where n=1-6, —CH—(COOH)—CH2—COOH, —CH2—CH(O—CH2CH3)2, —(C?S)—NH2, —(C?NH)—N—(CH2)nCH3, where n=0-6, —NH—(C?S)—SH, —CH2—(C?O)—O—C(CH3)3, —O—(CH2)n—CH—(NH2)—COOH, where n=1-6, —(CH2)n—CH?CH wherein n=1-6, —(CH2)n—CH—CN wherein n=1-6, an aromatic group such as a phenyl, benzyl, phenoxy, methylbenzyl, nitrogen-substituted benzyl or phenyl g

Abstract: A method for the manufacture of a polymer is provided, the method comprising: Providing a first monomer, the first monomer comprising a bicyclic diamine moiety, a first nucleophilic group provided on a carbon atom of an aromatic moiety, and a second nucleophilic group provided on a carbon atom of an aromatic moiety; Providing a bridging compound comprising at least two sites vulnerable to nucleophilic attack; and Contacting the first monomer with the bridging compound. Polymers made by said method and uses of such polymers are also disclosed.

Abstract: The invention relates to a method of separating off fluorinated acids, in particular perfluorocarboxylic acids and perfluorosulphonic acids or salts thereof, from dilute aqueous solutions with the help of anion exchangers.

Abstract: To provide a liquid composition containing a fluoropolymer having sulfonic acid functional groups, which rarely corrodes a metal and has good handling efficiency, which liquid composition comprises a fluoropolymer having sulfonic acid functional groups and a solvent, wherein the solvent contains a polyhydric alcohol and a monohydric alcohol. The content of the fluoropolymer is preferably from 5 to 50 mass % in the liquid composition (100 mass %), and the content of the polyhydric alcohol is preferably from 5 to 50 mass % in the solvent (100 mass %).

Abstract: The present invention relates to a method for improved removal of cations, preferably alkaline earth metals, in particular calcium and barium, from aqueous solutions using chelating resins having aminomethylphosphonic acid groups and iminodimethylphosphonic acid groups having high dynamic absorption capacity for cations at a low residual content of the cations and high regeneration efficiency, and a markedly lengthened loading duration of the chelating resin, to the chelating exchangers themselves, and also to uses thereof.

Abstract: A composition for filling an ion exchange membrane, a method of preparing the ion exchange membrane, the filled ion exchange membrane, and a redox flow battery using the filled ion exchange membrane. The composition includes an ion conductive material and a water soluble support.

Abstract: The present invention provides an ion-exchange resin catalyst, as a catalyst for preparing bisphenol from phenol compounds and ketone, which has a higher selectivity to bisphenol and a longer life time, as compared to a conventional ion-exchange resin, and a method for preparing the same. The present invention also provides a method for preparing bisphenol comprising reacting phenol compounds with ketone, wherein the modified acidic ion-exchange resin in which at least one kind of cationic compound selected from the following (a), (b), (c) and (d) ionically binds to an acidic functional group, is used as a catalyst: (a) a quaternary phosphonium ion, (b) a quaternary ammonium ion, (c) a bis(phosphoranylidene) ammonium ion, and (d) an N-substituted nitrogen-containing aromatic cation.

Abstract: A process for making an aqueous dispersion of fluorinated ionomer particles by polymerizing in a first polymerization step at least one fluorinated monomer having an ionic group in an aqueous polymerization medium in the presence of initiator, the polymerizing providing dispersed particulate of fluorinated ionomer, polymerizing in a second polymerization step at least one fluorinated monomer having an ionic group in the aqueous polymerization medium in the presence of the dispersed particulate of fluorinated ionomer and initiator to form the aqueous dispersion of particles of fluorinated ionomer, and suspending the first polymerization step prior to beginning the second polymerization step.

Abstract: A process for making an aqueous dispersion of fluorinated ionomer particles by providing dispersed particulate of fluorinated ionomer in an aqueous polymerization medium and polymerizing at least one fluorinated monomer having an ionic group in the aqueous polymerization medium in the presence of the dispersed particulate of fluorinated ionomer and initiator to form the aqueous dispersion of particles of fluorinated ionomer.

Abstract: An anion exchange membrane and fuel cell incorporating the anion exchange membrane are detailed in which proazaphosphatrane and azaphosphatrane cations are covalently bonded to a sulfonated fluoropolymer support along with anionic counterions. A positive charge is dispersed in the aforementioned cations which are buried in the support to reduce the cation-anion interactions and increase the mobility of hydroxide ions, for example, across the membrane. The anion exchange membrane has the ability to operate at high temperatures and in highly alkaline environments with high conductivity and low resistance.

Abstract: There is provided a modified ion exchange resin catalyst which exhibits higher bisphenols selectivity than the conventional modified ion exchange resins in processes wherein bisphenols are produced by reacting a phenolic compound with ketones, and to provide such a process for producing bisphenols.

Abstract: A polymer electrolyte membrane comprises at least one layer of a perforated sheet having many through-holes formed substantially parallel to the thickness direction with an average cross-sectional area per hole ranging from 1×10?3 to 20 mm2, wherein the numerical aperture based on the through-holes ranges from 30 to 80%, and the through-holes are filled with an ion exchange resin.

Abstract: The present invention relates to a method for improved removal of cations, preferably alkaline earth metals, in particular calcium and barium, from aqueous solutions using chelating resins having acetic acid and/or iminodiacetic acid groups having high dynamic absorption capacity for cations at a low residual content of the cations and high regeneration efficiency, to the chelating exchangers themselves, and also to uses thereof.

Abstract: Provided are separators used in power accumulators such as lithium ion secondary batteries and a preparation method thereof. The said separators are obtained through following steps: providing a polymer colloidal emulsion through a polymerization reaction of polyvinyl alcohol, hydrophobic monomer and hydrophilic monomer in water solution initiated by an initiator; coating a plastic substrate with the said polymer colloidal emulsion using tape-casting method; drying the plastic substrate coated with the polymer colloidal emulsion, and then obtaining the said separators by delaminating them from the substrate. The said separators have good liquid absorbability, high liquid absorption rate and retention, low resistivity, good mechanical strength and good thermal stability (little thermal shrinkage and little size distortion) as well as electrochemical stability. The prepared lithium ion batteries have good cycle stability and long service life.

Abstract: A fullerene-based proton conductor including a proton conductive functional group connected to the fullerene by an at least partially fluorinated spacer molecule. Also, a polymer including at least two of the proton conductors that are connected by a linking molecule. Further, an electrochemical device employing the polymer as a proton exchange membrane, whereby the device is able to achieve a self-humidifying characteristic.

Abstract: The present invention provides a novel tablet with improved tablet appearance and improved swallowability. The tablet contains a pharmaceutically acceptable anion exchange resin represented by colestimide as an active ingredient, and has a visibility-resolved tablet edge.

Abstract: A fullerene-based proton conductor including a proton conductive functional group connected to the fullerene by an at least partially fluorinated spacer molecule. Also, a polymer including at least two of the proton conductors that are connected by a linking molecule. Further, an electrochemical device employing the polymer as a proton exchange membrane, whereby the device is able to achieve a self-humidifying characteristic.

Abstract: Strongly acidic cation exchangers with high mechanical, osmotic and oxidation stability can be prepared by sulfonating bead polymers formed from one or more vinylaromatic monomer(s), one or more crosslinker(s) and from 0.2 to 20% by weight of one or more vinyl ethers and/or vinyl esters.

Abstract: An ionically conductive polymer has the chemical structure 1 as shown herein. Examples of the polymer include 4,4?-(4-(1H-benzo[d]imidazol-2-yl)butane-2,2-diyl)diphenol, sulfonated poly(aryl ether sulfone) containing benzimidazole backbone, sulfonated poly(aryl ether sulfone) containing carboxylic acid backbone, and sulfonated poly(aryl ether sulfone) containing benzimidazole backbone from carboxylic acid containing sulfonated poly(aryl ether sulfone). The polymer has intrinsic ion conducting properties so that it is effectively conductive even under low water conditions. In one embodiment, the polymer has an ionic conductivity of at least 1×10?5 S/cm at a temperature of 120° C. when the polymer is substantially anhydrous.

Abstract: To provide an electrolyte membrane having excellent dimensional stability even upon absorption of water, a high proton conductance and high power generation performance; and a process for producing the electrolyte membrane with a high productivity. An electrolyte membrane for polymer electrolyte fuel cells, which is made mainly of an ion exchange resin and reinforced with a nonwoven fabric made of fiber of a fluororesin wherein at least some of intersecting points of the fiber are fixed, and which has, as the outermost layer on one side or each side, a layer not reinforced, made of an ion exchange resin which may be the same as or different from the above ion exchange resin, wherein the fluororesin is an ethylene/tetrafluoroethylene copolymer having a melting point of at most 240° C., and the above fixing is fixing by fusion of the fiber.

Abstract: The invention relates to new compounds of Formula 1: [(O3/2)Si CH2CH2SX]a [Si(O4/2)]b[Si(O3/2V)]c. The compounds are useful as scavengers for the removal of unwanted organic and inorganic compounds, for solid phase extraction, for solid phase synthesis, for acid and metal mediated heterogeneous catalysis, for metal ion abstraction and for the immobilization of bio-molecules.

Abstract: The instant invention generally provides polymer pi-bond-philic filler composite comprising a molecularly self-assembling material and a pi-bond-philic filler, and a process of making and an article comprising the polymer pi-bond-philic filler composite. The instant invention also generally provides a process of separating a pi-bond-philic gas from a separable gas mixture comprising the pi-bond-philic gas.

Abstract: The present invention concerns shape memory materials comprising polyelectrolyte segments. These segments can be used for fixing a permanent shape and/or such segments can also be employed as switching segments responsible for the fixation and release of the temporary shape.

Abstract: Embodiments of the invention are related to anion exchange membranes used in electrochemical metal-air cells in which the membranes function as the electrolyte material, or are used in conjunction with electrolytes such as ionic liquid electrolytes.

Abstract: An improved process for regenerating ion exchange resin, includes a regeneration step of displacing captured ions from the resin to regenerate its ion-capture functionality, followed by one or more fluid-employing post-regeneration steps such as a fluid displacement or rinse, a fluid transporting or mixing, and a rinse down to quality. To avoid problems of early leakage of weakly held ions such as boron, the post-chemical or postdisplacement steps use water that is essentially free of boron, or otherwise avoid localized contamination in the regenerated resin which is used in bottles or beds (30). A two-stage polish may be operated with modified lead/lag bottles. A detector (D) for an indicator condition (conductivity, silica breakthrough) between stages determines when to shift the lag bottle forward, and periodically both bottles are replaced.

Abstract: One embodiment includes methods of adding two sulfonic acid groups to molecules having at least two cyclic groups.

Abstract: There are provided a drive unit, a lens module, an image pickup unit, a fuel cell, and an ion exchange resin, in which a characteristic deterioration depending on an ambient environment may be suppressed. The drive unit includes one or more polymer actuator devices. The polymer actuator device is configured using an ion exchange resin containing a moisturizing agent.

Abstract: A proton conductor is formed of a porous body as a substrate and proton-conducting polymer covalently bonded to inner surfaces of pores of the porous body. The proton-conducting polymer comprises a main chain and a plurality of branched side chains extending radially therefrom. The branched side chains are each bonded to a proton-conducting salt at the end. The proton-conducting polymer has a substantially cylindrical structure in which the salts can be circumscribed by a virtual circle having a center on the cross-sectional center of the main chain such that a radial direction of the virtual circle is perpendicular to a longitudinal direction of the main chain. The salts are located on the peripheral wall of the substantially cylindrical structure. Protons are transferred between the adjacent salts, so that a conduction channel is formed on the peripheral wall of the cylindrical structure.

Abstract: This invention relates to novel chemical resistant, film forming, and moisture vapor permeable ionomers, including specialized polyurethane ionomers, polyurea ionomers, polyamide ionomers, polyester ionomers, or a mixture of the said ionomers, having high content of covalent-bonded ionic groups, total >100 milli-equivalents per 100 gram of ionomers. These specialized ionomers have low noxious chemical crossover rate, high moisture vapor transmission rate, hydrolytically stable in humid environment, and capable of forming thin films.

Abstract: The present invention provides a polyarylene-based copolymer including a plurality of segments having an ion exchange group and a plurality of segments having substantially no ion exchange group, wherein at least one of the segments having an ion exchange group includes a polyarylene structure, the polystyrene-equivalent weight-average molecular weight of the segments having an ion exchange group is from 10,000 to 250,000, and the ion exchange capacity of the polyarylene-based copolymer is 3.0 meq/g or more.

Abstract: 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 composition has a pH of 0.8 to 12. The compositions are useful for preparing ion exchange membranes.

Abstract: The instant invention generally provides polymer inorganic clay composite comprising a molecularly self-assembling material and an inorganic clay, and a process of making and an article comprising the polymer inorganic clay composite.

Abstract: Irregularly shaped granules of a polymer capable of rapidly removing trace levels of toxic heavy metals from water, but posing high resistance to the flow of water, are trapped within interstitial spaces of a shape-retaining porous matrix of intercontacting fibers, forming a composite structure useful in on-the-run water remediations. The composite structure is produced by generating the granules within the matrix.

Abstract: An ion exchangeable mixture containing a polymeric compound consisting of an ion exchange resin, an acrylamide mixture containing at least one bisacrylamide and at least one acrylamide, and a copolymer obtained by reacting the polymeric compound with the acrylamide mixture, and a method of producing the same are provided. The ion exchangeable membrane produced by using the ion exchangeable mixture has significantly smaller electric resistance than conventional ion exchangeable membranes, and has excellent selective permeability because the ion exchangeable membrane is electrically charged. The ion exchangeable membrane can be produced under very mild production conditions, and thus can be produced very easily. Furthermore, the ion exchangeable membrane can be also formed into film during a crosslinking reaction in a solvent of water, and thus is advantageous in that the ion exchangeable membrane can be freely produced into desired sizes, shapes and forms.

Abstract: An intermediate transfer belt for an electrostatographic device and methods for making the intermediate transfer belt can include the use of polyamide-imide and carbon nanotubes and nanosheets, for example multi-walled carbon nanotubes, single-walled carbon nanotubes, graphene, graphite, and two or more of these as an electrically conductive filler.

Abstract: Flexible members for use in imaging devices comprise a polyphenylsulfone and a polyetherimide; and optionally, a polysiloxane surfactant.

Abstract: Flexible members for use in imaging devices comprise a polyamic acid and an internal release agent; and optionally, a polysiloxane surfactant.

Abstract: A method is provided, comprising: copolymerizing a monomer comprising at least two amide groups, a monomer of formula (a) and a sulfonic acid or salt monomer, wherein R1 is CH3 or H. A polymer made by the method, a membrane and an electrode comprising the polymer are provided.

Abstract: In the present invention is disclosed a method for producing a membrane for direct liquid fuel cell, which comprises polymerizing and curing a polymerizable composition containing at least a) an aromatic polymerizable monomer wherein one polymerizable group, at least one hydrogen atom, and at least one substituent selected from the group consisting of methyl group bonded at the para-position relative to the polymerizable group, alkyl group having two or more carbon atoms, halogen atom, acyloxy group and alkoxy group are bonded to the aromatic ring, b) a crosslinkable polymerizable monomer, and c) a polymerization initiator, or impregnating the polymerizable composition into a porous membrane and polymerizing and curing the polymerizable composition, and then introducing a cation exchange group into the aromatic ring derived from the aromatic polymerizable monomer.

Abstract: A module comprising a keymat and a screen cover. The module is adapted to be used in a device having a screen and at least one key. The module comprises a unitary body comprising said keymat and said screen cover.

Abstract: A proton conducting hydrocarbon-based polymer has acid groups on side chains attached to the main chain, where the acid groups are between 7 and 12 atoms away from the main chain. Another polymer includes a semi-fluorinated aromatic hydrocarbon main chain and side chains that include at least one —CF2— group and an acid group. Another polymer includes an aromatic hydrocarbon main chain and side chains that include at least one —CH2-CF2— group and an acid group. Another aromatic polymer includes acid groups attached to both the main chain and the side chains where less than about 65 weight percent of the acid groups are attached to the side chains. Another aromatic polymer includes side chains attached to the main chain that include at least one aryl ring, and acid groups attached to both the main chain and to the aryl groups. Another polymer includes an aliphatic hydrocarbon main chain, side chains that include at least one deactivating aryl ring, and acid groups attached to the deactivating aryl rings.

Abstract: A sulfonated poly(arylene sulfone) contains an unsaturated bond. A cross-linked material may be formed from the sulfonated poly(arylene sulfone), and a clay nanocomposite may include the sulfonated poly(arylene sulfone) or the cross-linked material. A fuel cell includes the clay nanocomposite.

Abstract: The present invention relates to novel amphoteric ion exchangers which possess not only phthalamide groups of the formula (I) but also —(CH2)mNR1R2 groups and/or if appropriate —(CH2)mNR1R2R3 groups, wherein m is an integer from 1 to 4 and R1, R2, R3 in each case independently of one another are hydrogen, —CH3, —CH2CH3, —CH2CH2CH3, benzyl, —OCH2CH3 or —CH2CH2OH and X is H or Na or K, to a process for production thereof and also use thereof.

Abstract: Provided are a biphenyltetrasulfonic acid compound represented by the formula (1): wherein R1 represents a hydrogen atom, a cation, a hydrocarbon group, or the like; R2 represents a hydrogen atom, an alkyl group, an aryl group, an aryloxy group, an aralkyl group, an aralkyoxy group, or the like; and X1 represents a chlorine atom, a bromine atom, an iodine atom, a hydroxyl group, an amino group, or the like, and a polymer containing a structural unit originating from the biphenyltetrasulfonic acid compound.