Jsr Corporation

Honda Motor Co., Ltd.

Teruhiko Umehara

Yoshitaka Yamakawa

Toshiaki Kadota

Nagayuki Kanaoka

Masaru Iguchi

Hiroshi Sohma

Kohei Goto

Nobuyuki Miyaki

Yousuke Konno

Toshihiro Ohtsuki

Yuki Kitamura

Ryoji Tatara

Yuuya Nawate

A polymer includes a first structural unit represented by formula (1-1), (1-2) or (1-3) and a second structural unit represented by formula (2) or (3). In the formulae (1-1) to (1-3), (2) and (3), R, Rand Reach represent a halogen atom, a monovalent hydrocarbon group having 1 to 20 carbon atoms, a monovalent halogenated hydrocarbon group having 1 to 20 carbon atoms, a nitro group or a cyano group; Zs each represent &#x2014;O&#x2014; or &#x2014;S&#x2014;; Rs each represent a methylene group or an alkylene group having 2 to 4 carbon atoms; and L represents a divalent group represented by formula (2-1). In the formula (2-1), Rrepresents a divalent alicyclic hydrocarbon group having 5 to 30 ring atoms or a divalent fluorinated alicyclic hydrocarbon group having 5 to 30 ring atoms. 

Polymer, resin composition and resin molded product

The invention described herein relates to a polyarylene copolymer comprising a structural unit represented by formula (1'): where the structural variables are defined herein. The invention also relates to a solid polymer electrolyte, a proton conductive membrane and A proton conductive membrane for direct methanol fuel cell which contains the polyarylene copolymer.

Aromatic compound and sulfonated polyarylene polymer

Disclosed is a polymer electrolyte having a protonic acid group that is excellent in thermal stability and dimensional stability. The polymer electrolyte includes copolymers having a sulfonic acid group which has a structure represented by the following formula: wherein X is a divalent electron-withdrawing group; Y is an oxygen or a sulfur; Z and Q are each a direct bond, &#x2014;O&#x2014;, &#x2014;S&#x2014;, &#x2014;CO&#x2014;, &#x2014;SO&#x2014;, &#x2014;[C(R')]&#x2014; (g: integer of from 1 to 8), etc.; R, R&#x2032; and Rto Rare each a hydrogen, a fluorine, an alkyl, a fluorine-substituted alkyl, an aryl or a nitrile; m, n, p, q, r, s, t and u are each an integer of from 0 to 4 (with the proviso that p+q&#x2267;1); and A is a group represented by Formula (5) or (5) below: wherein W is a divalent electron-withdrawing group; S is a protonic acid group; i is an integer of from 1 to 5; and j is an integer of from 1 to 7.

Solid polymer electrolyte, proton conductive membrane, electrode electrolyte, electrode paste and membrane-electrode assembly

Growing community of inventors

Tokyo, Japan

Teruhiko Umehara