| abstract |
A polymer of an embodiment includes a repeating unit containing at least one bivalent group selected from the following formula (1) and the following formula (2). n n n n n n n n n n In the formulas (1) and (2), R is hydrogen, fluorine, an alkyl group, an aryl group, a heteroaryl group, or the like. X and Y are each an alkanoyl group, an aminocarbonyl group, an alkylsulfonyl group, or the like. Ar is an aryl group or a heteroaryl group. |