ELECTRODE ELECTROLYTE FOR POLYMER FUEL CELL AND USE THEREOF

摘要

Provided is a solid polymer-type fuel cell electrode electrolyte that is excellent in proton conductivity, size stability, hot water resistance, and mechanical characteristics, can be inexpensively produced, and allows the recovery of a catalyst metal. The polymer-type fuel cell electrode electrolyte includes a polyarylene-based copolymer having a sulfonic acid group, and the copolymer contains a repeating constitutional unit represented by the following Formula (I):
(in the Formula, Y denotes at least one kind of structure selected from the group consisting of -CO-, -SO 2 -, -SO-, -CONH-, -COO-, -(CF 2 ) 1 - (1 is an integer of 1 to 10), and -C(CF 3 ) 2 -; W denotes at least one kind of structure selected from the group consisting of a direct bond, -CO-, -SO 2 -, -SO-, -CONH-, -COO-, -(CF 2 ) 1 - (1 is an integer of 1 to 10), -C(CF 3 ) 2 -, -O-, and -S-; Z denotes a direct bond or at least one kind of structure selected from the group consisting of - (CH 2 ) 1 - (1 is an integer of 1 to 10), -C(CH 3 ) 2 -, -O-, -S-, -CO-, and -SO 2 -; R 30 denotes a nitrogen-containing aromatic ring having a substituent represented by -SO 3 H, -O(CH 2 ) h SO 3 H, or -O(CF 2 ) h SO 3 H (h is an integer of 1 to 12); and
p denotes an integer of 0 to 10; q denotes an integer of 0 to 10; r denotes an integer of 1 to 5; and k denotes an integer of 0 to 4).