查询词典 lactide

The in situ graft copolymerization of starch with D, L-lactide was investigated.

研究了在聚乙二醇存在下，淀粉与丙交酯的原位熔融接枝反应。

The effects of dehydration temperature, ratio of dehydration, catalyst dosage, polymerization and depolymerization temperature on the yield of D, L-lactide were studied.

考察了制备过程中脱水温度、脱水率、催化剂量、聚合温度和解聚温度对丙交酯产率的影响。

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。

The reactive time and reactive temperature are two important parameters for yield of lactide.

反应时间和反应温度是制备丙交酯的两个重要的工艺参数，直接影响丙交酯的产率。

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。

The results show that the water weight detached from the lactic acid is 95% and the structure of lactide is cyclic diester.

结果表明，用辛酸亚锡作催化剂，在逐步升温后期减压的条件下，乳酸的脱水量达95%以上。

This matter overthrew all basises I learned from Sunday school .

这件事把我从周日学校学到的所有道理都颠覆了。

It's one of the cruel ironies of aging: if you want to remember your favorite restaurants, the less you should eat at them.

这是一个老化的残酷讽刺：如果你想记住你最喜欢的餐馆，你应该更少吃到它们。