| abstract |
Provided is a polymer comprising a repeating unit represented by formula (1), n n nwherein, A 1 represents a divalent group in which the bond distance ratio (bond distance of C(α)-A 1 /bond distance of C(α)-C(β)) is 1.10 or more; R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 , each independently represent a hydrogen atom, alkyl group, alkyloxy group, aryloxy group, arylalkyloxy group, etc. The polymer is useful as a light-emitting material, a charge transporting material, etc. |