| 摘要 |
<p>Provided is a polymer comprising a repeating unit represented by formula (1),[err] wherein, A[err] represents a divalent group in which the bond distance ratio (bond distance of C(a)-A[err] / bond distance of C( a )-C( [err] ) ) is 1.10 or more; R[err], R[err], R[err], R[err], R[err, and R[err], 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.</p> |
