Abstract: Disclosed is a metal complex that can be used as a gas absorption material with superior gas absorbing properties, a gas storage material with a high storage capacity, and a gas separation material with superior gas separation performance and high adsorption capacity. Disclosed is a metal complex, and a manufacturing method therefor, which consists of: a polycyclic aromatic dihydroxy monocarboxylic acid compound, in the structural formula of which hydroxyl groups are at the farthest locations from each other, which has carboxyl groups at the locations adjacent to the hydroxyl groups, and which has 10 or more circularly conjugated ? electrons, such as 3,7-dihydorxy-2-naphtoic acid or 4,4?-dihydroxy-3-biphenylcaroxylic acid; at least one metal selected from chromium, molybdenum, tungsten, manganese, iron, ruthenium, cobalt, rhodium, nickel, palladium, copper, zinc, and cadmium; and an organic ligand, such as 4,4?-bipyridyl, capable of bidentate bonding with said metal.

Abstract: The present invention provides hydrogenated ?-pinene-based polymers with excellent heat resistance and light resistance, low absorptivity and high transparency, as well as molded articles thereof. The polymers of the present invention contain 50% by mass or more of ?-pinene units and are hydrogenated ?-pinene-based polymers where the ratio of the proton integral value at 6 to 8 ppm to the total proton integral value in a 1H-NMR spectrum is 2.3×10?5 or less or the p-phenylene group content is 0.0055% by mass or less, and the ratio of the proton integral value at 4.5 to 6 ppm to the total proton integral value is 2.8×10?4 or less or the cyclohexene-1,4-diyl group content is 0.29% by mass or less. The molded articles of the present invention contain the above hydrogenated ?-pinene-based polymers.

Abstract: In a membrane-electrode assembly for polymer electrolyte fuel cells comprising a polymer electrolyte membrane and two gas diffusion electrodes being bonded to the membrane so that the membrane can be between them, at least one catalyst layer constituting the gas diffusion electrodes characterized in that the ion-conductive binder comprises a block copolymer having a particle size of 1 ?m or less comprising a polymer block (A) having ion-conductive groups and a polymer block (B) having no ion-conductive group, both polymer blocks phase separate from each other, polymer block (A) forms a continuous phase, and the contact parts of the block copolymer with catalyst particles are comprised of polymer block (A) having ion-conductive groups; a membrane-electrode assembly and a polymer electrolyte fuel cell.

Abstract: A membrane-electrode assembly for polymer electrolyte fuel cells comprising a polymer electrolyte membrane and two gas diffusion electrodes being bonded to the membrane so that the membrane can be between them, in which assembly each gas diffusion electrode is comprised of an electrode catalyst layer and a gas diffusion layer, intermediate layer(s) being an ion conductor is/are arranged between the electrode catalyst layer(s) and the membrane, the ion conductor mainly comprises a block copolymer comprising a polymer block (A) having ion-conductive groups and a polymer block (B) having no ion-conductive group, both blocks phase-separate from each other, (A) forms a continuous phase, and the contact part(s) of the intermediate layer(s) with the polymer electrolyte membrane and the contact part(s) of the intermediate layer(s) with the electrode catalyst layer(s) are comprised of polymer block (A) having ion-conductive groups; and a polymer electrolyte fuel cell wherein the assembly is used.

Abstract: A photoelectric conversion device according to the present invention includes, between a pair of electrodes, an electron donor layer having an interdigitated shape in cross section comprising a stripe-like part in cross section and a base, a plurality of strip-like parts in cross section extending in a direction intersecting electrode main surfaces being formed at intervals in the stripe-like part in cross section; and an electron acceptor layer having an interdigitated shape in cross section comprising a stripe-like part in cross section and a base, a plurality of strip-like parts in cross section extending in a direction intersecting the electrode main surfaces being formed at intervals in the stripe-like part in cross section, the photoelectric conversion device further including an active layer in which the plurality of strip-like parts in cross section of the electron donor layer and the plurality of strip-like parts in cross section of the electron acceptor layer are alternately joined.

Abstract: A polymer electrolyte membrane comprising as a main ingredient a block copolymer (P) which comprises, as its constituents, a vinyl alcoholic polymer block (A) and a polymer block (B) having ion-conducting groups, which block copolymer (P) is cross-linking treated, and a membrane-electrode assembly and a fuel cell using the polymer electrolyte membrane, respectively. Preferred as polymer block (B) is one having a styrene or vinylnaphthalene skeleton or a 2-(meth)acrylamido-2-methylpropane skeleton. The ion-conducting group includes a sulfonic acid group, a phosphonic acid group or the like.

Abstract: A polymer electrolyte which comprises an ionic liquid (A) and a block copolymer (B) as essential ingredients, which block copolymer (B) comprises one or more of polymer block(s) (P) being compatible with (A) and one or more of polymer block(s) (Q) being incompatible with (A). (A) and (P) mutually dissolve each other to form one phase (X), and (Q) forms a phase (Y) being incompatible with phase (X), and phase (X) and phase (Y) are mutually micro phase separated. The polymer electrolyte of the present invention shows practical ion conductivity, is excellent in retention of ionic liquid, and moreover, is also excellent in heat resistance and mechanical strength.

Abstract: Disclosed is a metal complex that can be used as a gas absorption material with superior gas absorbing properties, a gas storage material with a high storage capacity, and a gas separation material with superior gas separation performance and high adsorption capacity. Disclosed is a metal complex, and a manufacturing method therefor, which consists of: a polycyclic aromatic dihydroxy monocarboxylic acid compound, in the structural formula of which hydroxyl groups are at the farthest locations from each other, which has carboxyl groups at the locations adjacent to the hydroxyl groups, and which has 10 or more circularly conjugated it electrons, such as 3,7-dihydorxy-2-naphtoic acid or 4,4?-dihydroxy-3-biphenylcaroxylic acid; at least one metal selected from chromium, molybdenum, tungsten, manganese, iron, ruthenium, cobalt, rhodium, nickel, palladium, copper, zinc, and cadmium; and an organic ligand, such as 4,4?-bipyridyl, capable of bidentate bonding with said metal.

Abstract: The present invention provides hydrogenated ?-pinene-based polymers with excellent heat resistance and light resistance, low absorptivity and high transparency, as well as molded articles thereof. The polymers of the present invention contain 50% by mass or more of ?-pinene units and are hydrogenated ?-pinene-based polymers where the ratio of the proton integral value at 6 to 8 ppm to the total proton integral value in a 1H-NMR spectrum is 2.3×10?5 or less or the p-phenylene group content is 0.0055% by mass or less, and the ratio of the proton integral value at 4.5 to 6 ppm to the total proton integral value is 2.8×10?4 or less or the cyclohexene-1,4-diyl group content is 0.29% by mass or less. The molded articles of the present invention contain the above hydrogenated ?-pinene-based polymers.

Abstract: In a membrane-electrode assembly for polymer electrolyte fuel cells comprising a polymer electrolyte membrane and two gas diffusion electrodes being bonded to the membrane so that the membrane can be between them, at least one catalyst layer constituting the gas diffusion electrodes characterized in that the ion-conductive binder comprises a block copolymer having a particle size of 1 ?m or less comprising a polymer block (A) having ion-conductive groups and a polymer block (B) having no ion-conductive group, both polymer blocks phase separate from each other, polymer block (A) forms a continuous phase, and the contact parts of the block copolymer with catalyst particles are comprised of polymer block (A) having ion-conductive groups; a membrane-electrode assembly and a polymer electrolyte fuel cell.

Abstract: A membrane-electrode assembly for polymer electrolyte fuel cells comprising a polymer electrolyte membrane and two gas diffusion electrodes being bonded to the membrane so that the membrane can be between them, in which assembly each gas diffusion electrode is comprised of an electrode catalyst layer and a gas diffusion layer, intermediate layer(s) being an ion conductor is/are arranged between the electrode catalyst layer(s) and the membrane, the ion conductor mainly comprises a block copolymer comprising a polymer block (A) having ion-conductive groups and a polymer block (B) having no ion-conductive group, both blocks phase-separate from each other, (A) forms a continuous phase, and the contact part(s) of the intermediate layer(s) with the polymer electrolyte membrane and the contact part(s) of the intermediate layer(s) with the electrode catalyst layer(s) are comprised of polymer block (A) having ion-conductive groups; and a polymer electrolyte fuel cell wherein the assembly is used.

Abstract: Disclosed are: a polymer electrolyte which comprises, as the main component, a block/graft copolymer comprising, as constituent components, polymer blocks (A), (B) and (C) which cause phase-separation from one another, wherein the polymer block (A) comprises a vinyl compound unit as the main repeating unit and has an ion-conductive group, the polymer block (B) comprises a vinyl compound unit capable of forming a flexible phase as the main repeating unit and forms a flexible phase, and the polymer block (C) comprises a styrene derivative unit carrying an alicyclic hydrocarbon group having a polycyclic structure as the main repeating unit and forms a restrained phase; a membrane; a membrane-electrode assembly; and a solid polymer fuel cell.

Abstract: A polymer electrolyte membrane comprising as a main ingredient a block copolymer (P) which comprises, as its constituents, a vinyl alcoholic polymer block (A) and a polymer block (B) having ion-conducting groups, which block copolymer (P) is cross-linking treated, and a membrane-electrode assembly and a fuel cell using the polymer electrolyte membrane, respectively. Preferred as polymer block (B) is one having a styrene or vinylnaphthalene skeleton or a 2-(meth)acrylamido-2-methylpropane skeleton. The ion-conducting group includes a sulfonic acid group, a phosphonic acid group or the like.

Abstract: A polymer electrolyte which comprises an ionic liquid (A) and a block copolymer (B) as essential ingredients, which block copolymer (B) comprises one or more of polymer block(s) (P) being compatible with (A) and one or more of polymer block(s) (Q) being incompatible with (A). (A) and (P) mutually dissolve each other to form one phase (X), and (Q) forms a phase (Y) being incompatible with phase (X), and phase (X) and phase (Y) are mutually micro phase separated. The polymer electrolyte of the present invention shows practical ion conductivity, is excellent in retention of ionic liquid, and moreover, is also excellent in heat resistance and mechanical strength.

Abstract: A polymer consisting mainly of structural units represented by the general formula (1), wherein the total molar amount of terminal aldehyde groups and acetal groups is 0.6 mol % or smaller based on the total molar amount of the structural units represented by the general formula (1). —[—(—CHR1—)n—CX1R2—CX2R3-]— (1) (In the formula, n is an integer of 2 to 10; X1 and X2 each represents —H, —OH, or a functional group capable of being converted into —OH, provided that at least one of X1 and X2 is hydroxy or a functional group capable of being converted into hydroxy; and R1, R2, and R3 each represents —H or C1-5 alkyl, aryl, aralkyl, or heteroaryl and the two or more R1's may be different).

Abstract: A polymer consisting mainly of structural units represented by the general formula (1), wherein the total molar amount of terminal aldehyde groups and acetal groups is 0.6 mol % or smaller based on the total molar amount of the structural units represented by the general formula (1). —[—(—CHR1—)n—CX1R2—CX2R3-]— (1) (In the formula, n is an integer of 2 to 10; X1 and X2 each represents —H, —OH, or a functional group capable of being converted into —OH, provided that at least one of X1 and X2 is hydroxy or a functional group capable of being converted into hydroxy; and R1, R2, and R3 each represents —H or C1-5 alkyl, aryl, aralkyl, or heteroaryl and the two or more R1's may be different.

Abstract: A resin composition comprises a copolymer (A) comprising ethylene as a major component produced with a single-site catalyst, and an ethylene-vinyl alcohol copolymer (B) having an ethylene content of 20-60 mol. % and a degree of hydrolysis of 95% or above, the resin composition satisfying the equation (1): 1/99≦{weight of (A)}/{weight of (B)}≦<99/1  (1) A preferred resin composition comprises a copolymer (A) which has a density of 0.90-0.94 g/cm3 and the resin composition further comprises a carboxylic acid-modified polyolefin (C) and satisfies the equations (2) and (3): 60/40≦{weight of (A)}/{(weight of (B)}≦: 99/1  (2) 0.1/99.9≦X≦: 20/80  (3) wherein X={weight of (C)}/{total weight of (A) and (B)}. Another preferred resin composition comprises a copolymer (A) which has a density of 0.85-0.

Abstract: A hydrogenated polymer is prepared by a method comprising: hydrogenating a polymer having carbon—carbon double bonds and a hydroxy group and/or a functional group which is convertible into a hydroxy group or into a hydroxymethyl group in the presence of a catalyst of palladium on a base activated carbon and/or platinum on a base activated carbon.

Abstract: A hydrogenated polymer is prepared by a method comprising:

Abstract: A resin composition comprises a copolymer (A) comprising ethylene as a major component produced with a single-site catalyst, and an ethylene-vinyl alcohol copolymer (B) having an ethylene content of 20-60 mol.