BLOCK COPOLYMER, MANUFACTURING METHOD THEREFOR, AND POLYMER ELECTROLYTE MATERIAL, MOLDED POLYMER ELECTROLYTE, AND SOLID-POLYMER FUEL CELL USING SAID BLOCK COPOLYMER

摘要

To provide: a block copolymer that exhibits excellent proton conductivity even under low-humidification conditions, exhibits excellent mechanical strength and chemical stability, and when used in a polymer electrolyte fuel cell, allows high output and excellent physical durability; a polymer electrolyte material; and a polymer electrolyte form article and a polymer electrolyte fuel cell, using the same.;The block copolymer of the present invention includes each one or more of: a segment (A1) containing an ionic group; a segment (A2) not containing an ionic group; and a linker moiety connecting the segments. The segment (A1) containing an ionic group comprises a constituent unit represented by a specific structure. The polymer electrolyte material, the polymer electrolyte form article, and the polymer electrolyte fuel cell according to the present invention are manufactured by using the above block copolymer.

主权项

1. A block copolymer including each one or more of: a segment (A1) containing an ionic group; a segment (A2) not containing an ionic group; and a linker moiety connecting the segments, wherein the segment (A1) containing an ionic group comprises a constituent unit represented by a general formula (S1) described below,where, in the general formula (S1), Ar1 to Ar4 are each an arbitrary divalent arylene group; Ar1 and/or Ar2 contains an ionic group, and Ar3 and Ar4 can each contain or not contain an ionic group; Ar1 to Ar4 may each be arbitrarily substituted, and in Ar1 to Ar4, two or more kinds of arylene groups can be used independently of each other; and the symbol * signifies a bond moiety with the general formula (S1) or with other constituent unit.