The results show that the direct melt polymerization is a better way for obtaining higher Mw.
结果表明，相同条件下直接熔融聚合较为理想。
参考来源 - 一些功能性乳酸衍生物的合成研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The process conditions in the stages of esterification, melt polymerization and solid state polymerization were discussed.
讨论了酯化反应，熔融聚合，固相聚合阶段的工艺条件。
Meanwhile, various stabilizers were used to promote the heat stability of the high viscosity PET, and some ideas were given for preparing high viscosity PET by melt polymerization.
并使用多种稳定剂来改善高粘度树脂的热稳定性，提出了用熔融法制备高粘度PET的一些设想。
The results show that high-molecular weight PLA can be prepared by the direct melt condensation polymerization at suitable technological condition and the product has good biodegradability.
结果表明：采用适当的工艺能通过熔融缩聚法制备出高分子质量的聚乳酸，且具有良好的生物降解性能。
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