CROSS-LINKED AROMATIC POLYMER ELECTROLYTE MEMBRANE AND PRODUCING METHOD THEREOF, AND POLYMER FUEL CELL USING CROSS-LINKED AROMATIC POLYMER ELECTROLYTE MEMBRANE

摘要

PROBLEM TO BE SOLVED: To produce a cross-linked aromatic polymer electrolyte membrane that achieves both ion conductivity and the mechanical strength of a membrane.

SOLUTION: A portion of a graft chain formed by graft polymerization after applying a cross-linked structure by irradiation exposure to an aromatic polymer film base material and forming the graft chain by a graft polymerization process is chemically converted into a sulfonic acid group to thereby introduce the sulfonic acid group to the graft chain.

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