| 摘要 |
A membrane electrode assembly for solid polymer electrolyte fuel cells exhibits higher proton conductivity and superior thermal resistance, in which the solid polymer electrolyte membrane has a nitrogen atom and a sulfonic acid group, and a principal chain of a constitutional unit is a phenylene bond, is provided. In particular, the membrane electrode assembly for solid polymer electrolyte fuel cells preferably contains the sulfonated polyarylene expressed by the formula (1).
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