聚乳酸的合成、微观结构及性能

Synthesis, Microstructure and Properties of Polylactide

聚乳酸是生物可降解的高分子合成材料,由于其降解产物无毒,在生物医学和环保领域都得到了广泛的关注。合成聚乳酸的初始物质乳酸是有手性的分子,使得聚乳酸的机械和物理性能以及生物学性质与乳酸单体的立体异构性有关。基于此,从乳酸的结构特点出发,对聚乳酸的合成方法、微观结构、性能等进行了系统阐述。

Polylactide(PLA) is a manmade, biodegradable polymer, which has received extensive attention in biomedical and environmental application. For lactic acid has one asymmetric carbon atom, the mechanical, physical and biological properties of PLA are related to the stereochemistry of lactic acids. The synthesis methods, microstructure and properties of PLA were reviewed, and the relationship between its microstructure and properties was described.