丙交酯

PDLLA/β-TCP composite was obtained by mixing β-TCP and DLLA in a certain proportion prior to ring-opening polymerization when Sn2 as initiator in a vacuum circumstance and a constant oscillation.

以辛酸亚锡作引发剂，将一定比例的β-磷酸三钙与DL丙交酯混匀后在真空体系下开环聚合，并持续均匀振荡，得到PDLLA/β-TCP复合材料。

PDLLA/β TCP composite is obtained by mixing β-TCP and DLLA in a certain proportion prior to ring-opening polymerization using Sn2 as initiator in a vacuum circumstance and a constant oscillation.

以辛酸亚锡作引发剂，将一定比例的β-磷酸三钙与DL丙交酯混匀后在真空体系下开环聚合，并持续均匀振荡，得到PDLLA/β-TCP复合材料。

The results indicated that control of water in the reaction system was very important to the formation of lactide.

结果表明，所选择的各模型反应为吸热反应且近似可逆，水的控制对丙交酯的形成很重要。

The polymerization condition of lactide is studied in this paper.

本文研究了丙交酯酸的聚合条件，用DSC和TGA表征了聚合物的热性能。

We use the method of decomposing PLA to synthesize lactide by means of orthodoxical experiment method.

本文主要进行了丙交酯的合成工艺研究及聚乳酸的开环聚合工艺研究。

We investigate how the type of lactide affacts the molecular weight of PLA at the same time.

并考察了丙交酯类型及纯度对聚乳酸分子量的影响。

This technology can not only reduce the cost of producing lactide, but also solve the pollution problems from kitchen garbage.

本工艺不但可降低丙交酯的生產成本，而且解决了厨房垃圾的环境污染问题。

PLA has been produced by ring-opening polymerization of lactide or direct polycondensation of lactic acid.

制备聚乳酸常通过乳酸的直接聚合或丙交酯的开环聚合两种方法。

It included the synthesis of lactide, the purification of lactide, the polymerization of lactide and the compositess analysis and so on.

包括丙交酯的制备、提纯、聚合及复合材料性能的表征一系列研究工作。

It included the synthesis of lactide, the purification of lactide, the polymerisation of lactide and the polymers analysis and so on.

包括丙交酯的制备、提纯、聚合及聚合物的性能表征—系列研究工作。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。