聚乳酸的合成主要有两种方法：丙交酯的开环聚合和乳酸直接缩聚。
There are two main methods to synthesis PLA, ring - opening polymerization of lactide and condensation polymerization of lactic acid.
聚乳酸的合成主要有两种方法：乳酸直接缩聚和丙交酯的开环聚合。
There are two main methods to synthesis PLA, condensation polymerization of lactic acid and ring-opening polymerization of lactide.
研究了以KOH为催化剂，二元或三元醇为起始剂，采用阴离子开环聚合合成淬火剂用共聚醚。 结果表明：产物的分子量随起始剂和杂质量的减少而增加；
The synthesis of oxyethylene oxypropylene copolyethers used for quenchant was studied by using anionic ring opening polymerization, diol or triol as the starting agent and KOH as the catalyst.
此外，应用活性开环易位聚合合成新型材料和功能高分子是近年来开环易位聚合领域里最活跃的板块。
Besides, the synthesis of new materials and functional polymers by ROMP has become the most active part in the field of the research of ROMP.
聚乳酸的合成方法主要有两种：乳酸直接聚合和丙交酯开环聚合。
Polylactic acid synthesis in two major ways:direct polymerization and lactate lactide ring-opening polymerization.
讨论了聚乳酸研究中开环聚合过程中各种催化剂的选择和使用，并对未来工作进行了展望。
In this paper, the advances on selection and use of catalysts for ring - opening polymerization of PLA are reviewed and the future work in this area is also evaluated.
讨论了聚乳酸研究中开环聚合过程中各种催化剂的选择和使用，并对未来工作进行了展望。
In this paper, the advances on selection and use of catalysts for ring - opening polymerization of PLA are reviewed and the future work in this area is also evaluated.
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