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从左旋L-乳酸经高温催化反应得到低聚L- 乳酸,再经高温裂解减压蒸馏制得单体L-丙交酯(LLA),理论收率高达80%以上.LLA经纯化,再以辛酸亚锡为催化剂开环聚合得到聚L-丙交酯(聚L-乳酸,PLLA),其粘均分子量可达到40万.

参考文献

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