| abstract |
This polycarbonate copolymer is characterized by having a repeating unit represented by general formula (1) and a repeating unit represented by general formula (2), and the repeating unit represented by general formula (1) being formed using a bischloroformate oligomer represented by general formula (100) having an average number of monomers (n) of 1.0-1.3 inclusive. In general formula (100) and (1), Ar 1 is a group represented by general formula (3), and in general formula (2), Ar 2 is a group having a divalent aromatic group. In general formula (3), X 1 is a single bond or an oxygen atom. Also, R 11 each independently is a methyl group or an ethyl group. |