To provide a new polymer and a polymer electrolyte having excellent durability.
The polymer includes at least one structure classified into one of formulae (1a) to (1d), wherein the ratio of the total number of structures classified into formula (1c) and (1d) to the total number of structures classified into formulae (1a) to (1d) included in the polymer is not less than 85%. In the formulae, A1 to A12 each independently represents an ion-exchange group or a substituent containing an ion-exchange group; R1 to R12 each independently represents a substituent selected from among 1-20C alkyl groups which may have a substituent except for an ion-exchange group, 1-20C alkoxy groups which may have a substituent except for an ion-exchange group, 6-20C aryl groups which may have a substituent except for an ion-exchange group, 6-20C aryloxy groups which may have a substituent except for an ion-exchange group, 2-20C acyl groups which may have a substituent except for an ion-exchange group, and a fluorine atom; p1 to p12 each independently represents an integer of 0 to 3; and when there are a plurality of R1 to R12, they may be identical to or different from one another.
KURITA YASUYUKI
Yoshinori Shimizu
Takashi Mikami
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