The diphenyl compound for polymer electrolyte, a polymer electrolyte, a membrane-electrode assembl

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PROBLEM TO BE SOLVED : To provide a diphenyl compound for a polymer electrolyte capable of preventing swelling, a polymer electrolyte, a film electrode assembly, a solid polymer type fuel cell and a manufacturing method for a polymer electrolyte.SOLUTION : There is provided a diphenyl compound for a polymer electrolyte represented by the general formula (1). (1), where Rand Rare each independently a connecting group selected from a group consisting of -(CH)-, -O-(CH)-, -S-(CH)-, -NH-(CH)-, -(CF)-, -O-(CF)-, -S-(CF)- and -NH-(CF)-, where a is an integer of 2 or more, Xand Xare each independently a halogen atom, Yand Yare each independently an atom selected from a group consisting of group I elements and group II elements, and Z is a connecting group selected from a group consisting of -CO-, -O- and -S-.