HYPERBRANCHED POLYMER HAVING HOLE CONDUCTIVITY

摘要

PROBLEM TO BE SOLVED: To obtain the subject hyperbranched polymer having a hole conductive structure at the molecular ends, not containingπelectron conjugated system containing carbonyl group and benzene ring in the molecule center structure and useful as a material isotropically having conductive pathway of hole and having extremely high hole-conductive efficiency. SOLUTION: This hyperbranched polymer has a hole conductive structure at the molecular ends and does not containπelectron conjugated system in molecular center structure. The polymer is preferably dendrimer and preferably has polypropyleneimine structure. The polymer is obtained by reacting, e.g. polypropyleneiminedendrimer with a hole conductive structural unit such as ethyl 4-(N,N-diethylamino)benzoate. The polymer is useful for photoelectric devices.