以锌为催化剂由乳酸的低聚物裂解制得单体丙交醋，再由二乙基锌引发开环聚合得到高分子量的聚乳酸。

With the Zinc as the catalyst, lactide monomer was obtained by decomposition of low polymer. With the zinc diethyl as the catalyst, the lactide was polymerized to Poly(DL-lactic acid).

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以锌为催化剂由乳酸的低聚物裂解制得单体丙交醋，再由二乙基锌引发开环聚合得到高分子量的聚乳酸。

With the Zinc as the catalyst, lactide monomer was obtained by decomposition of low polymer. With the zinc diethyl as the catalyst, the lactide was polymerized to Poly(DL-lactic acid).

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