| 摘要 |
<p>Provided are: a novel polycarbonate copolymer, which is composed of a structural unit derived from an aliphatic diol compound having an aliphatic hydrocarbon group bonded to a terminal hydroxyl group and a structural unit derived from an aromatic dihydroxy compound, which has a structure represented by general formula (III), which contains the structural unit derived from an aliphatic diol compound in an amount of 1-30% by mole, which has a Q value of 0.02-1.0 ml/s (at 280°C under a load of 160 kg), which has an Mw of 30,000-100,000, and which has high fluidity in spite of high molecular weight; an aromatic polycarbonate compound which is suitable as a prepolymer for the production of a polycarbonate copolymer having high fluidity and which is composed of a structural unit derived from an aromatic dihydroxy compound; and a method for producing an aromatic polycarbonate resin having a high molecular weight, which comprises a step wherein an aromatic polycarbonate and an aliphatic diol compound are reacted with each other in the presence of a transesterification catalyst and a by-produced cyclic carbonate is removed outside the reaction system.</p> |
