METHOD FOR PRODUCING POLYMER ELECTROLYTE MOLDED ARTICLE, POLYMER ELECTROLYTE MATERIAL, POLYMER ELECTROLYTE MEMBRANE, AND POLYMER ELECTROLYTE FUEL CELL

摘要

The present invention relates to a method for producing a polymer electrolyte molded article, which comprises forming a polymer electrolyte precursor having a protective group and an ionic group, and deprotecting at least a portion of protective groups contained in the resulting molded article to obtain a polymer electrolyte molded article. According to the present invention, it is possible to obtain a polymer electrolyte material and a polymer electrolyte molded article, which are excellent in proton conductivity and are also excellent in fuel barrier properties, mechanical strength, physical durability, resistance to hot water, resistance to hot methanol, processability and chemical stability. A polymer electrolyte fuel cell using a polymer electrolyte membrane, polymer electrolyte parts or a membrane electrode assembly can achieve high output, high energy density and long-term durability.

主权项

1. A polymer electrolyte material comprising:at least an ionic group-containing polymer containing constituent units represented by the general formulas (Q1) and (Q3) and further comprising a molar content of constituent units represented by the general formulas (Q1), (Q2) and (Q3) in accordance with the following formulas: wherein a3 and a4 represent an integer satisfying the following equation: a3+a4=1, a5 and a6 represent an integer satisfying the following relational expression: 2≦a5+a6≦8, M3 to M6 represent a cation selected from hydrogen, a metal cation and an ammonium cation and, in the general formulas (Q1) to (Q3), a phenylene group may be substituted with an optional group excluding an ionic group, and
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