| 摘要 |
<p>A branched polycarbonate having a branching derived from a polyfunctional compound, comprising a repeating unit represented by general formula (1), a branched structure (a) derived from the polyfunctional compound and a branched structure (b) including at least one selected from the group consisting of branched structures represented by general formulas (2), (3) and (4), the total content of (a) and (b) with respect to (1) being 0.2-1.0 mol%, the ratio of (b) with respect to the total of (a) and (b) being 0.1-0.6, and the ratio of (2) with respect to the content of (b) being 0.5 or greater.
[In formulas, Ar represents a divalent aromatic residue and Ar' represents a trivalent aromatic residue.]</p> |
