ELECTROLYTE MATERIAL, LIQUID COMPOSITION, MEMBRANE ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELL AND FLUORINATED BRANCHED POLYMER
申请人:ASAHI GLASS COMPANY, LIMITED
公开号:US20170098846A1
公开(公告)日:2017-04-06
To provide: an electrolyte material having high oxygen permeability as compared with conventional ones; a membrane electrode assembly for a polymer electrolyte fuel cell excellent in power generation characteristics as compared with conventional ones; a liquid composition suitable for forming a catalyst layer for the membrane electrode assembly; and a fluorinated branched polymer useful as e.g. a raw material of the electrolyte material. The electrolyte material comprises a fluoropolymer (H)
1
having a structural unit (u1) that has an ionic group and a structural unit (u2) that has an alicyclic structure, wherein the fluoropolymer (H)
1
is composed of a branched molecular chain, and has a segment (A)
3
comprising a molecular chain having the structural unit (u1) and a segment (B)
2
composed of a molecular chain having the structural unit (u2), and the ion exchange capacity of the segment (B)
2
is smaller than the ion exchange capacity of the segment (A)
3.
[EN] PREPARATION OF PERFLUOROVINYL ETHER SULFINIC ACIDS AND THEIR SALTS<br/>[FR] PRÉPARATION D'ACIDES PERFLUOROVINYLÉTHERSULFINIQUES ET DE LEURS SELS