| 摘要 |
<p>A continuous process for the production of branched polycarbonate, which includes: a step (A) of producing a low-molecular polycarbonate having a number-average molecular weight of 1000 to 10000 from an aromatic dihydroxyl compound and a carbonic diester via transesterification; a step (B) of adding the polyfunctional compound in a liquid state to the low-molecular polycarbonate, and mixing the resulting system; and a step (C) of conducting the polymerization of the mixture successively until the melt index and melt index ratio of the low-molecular polycarbonate reach 10g/10min or less and 14 or more respectively, and thus producing a branched polycarbonate.</p> |
