| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrolyte membrane indicating comparatively high proton conductivity even in a low humidity area.SOLUTION: The disclosed electrolyte membrane is a polymer electrolyte membrane constituted using polymer having proton conductivity, and the polymer is constituted by a first constitutional unit derived from plural kinds of diamine monomer, and a second constitutional unit derived from tetracarboxylic acid dianhydride. The first constitutional unit and the second constitutional unit are alternately aligned. Any of the plural kinds of diamine monomer contains a proton conductive group. |
