| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a biodegradable aliphatic polyester carbonate having a high molecular weight sufficient for practical purposes, moldability, heat resistance, solvent resistance, and mechanical strength which inhibits formation and distillation of an aliphatic dihydroxy compound and/or a self-reacted cyclic ether and the like in reacting an aliphatic polyester oligomer with a carbonate compound. SOLUTION: The method for producing a biodegradable aliphatic polyester carbonate uses at least one metallic compound selected from Ga, Mn, Co, Mg, In, and Ti compounds as a catalyst in reacting the aliphatic polyester oligomer with the carbonate compound. COPYRIGHT: (C)2005,JPO&NCIPI
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