| abstract |
Provided is a hyperbranched polymer which is represented by formula (1) and which is characterized by having a weight-average molecular weight of 1,000 to 1,000,000. In formula (1), A 1 is a group comprising an aromatic ring, A 2 is a group comprising an amide group, A 3 is a group comprising sulfur, R 0 is a hydrogen or a substituted or unsubstituted C1-10 hydrocarbon group, m1 is 0.5 to 11, and n1 is 5 to 100. |