DL-乳酸-ε-己内酯无规共聚物改性聚DL-乳酸  

Modification of Poly(DL-lactide) by Poly(DL-lactide-co-ε-CL)

作　　者：陈和春[1] 张丽芳[1] 杨德娟[1] 陈栋梁[1] 徐梁[1] 熊左春[1] 熊成东[1] 

机构地区：[1]中国科学院成都有机化学研究所

出　　处：《合成化学》2008年第1期19-23,共5页Chinese Journal of Synthetic Chemistry

摘　　要：合成了高分子量DL-乳酸-ε-己内酯无规共聚物(PLCA),其结构经1H NMR表征。通过溶液共混制备了用PLCA改性DL-聚乳酸(PDLLA)的复合材料PDLLA/PLCA(PLC)。研究了PLC的微观形态,力学性能,降解性等。结果表明,PLCA与PDLLA具有良好相容性;与PDLLA比较,PLC的柔韧性得到显著提高,降解速度加快。Poly （DL-lactide-co-ε-CL） （PLCA） with high molecular weight was synthesized. The structure of PLCA was confirmed by ^1H NMR. Poly （DL-lactide） （PDLLA） was modified by PLCA through solution blending to obtain PDLLA/PLCA composite material（PLC）. The morphology, mechanical properties and degradation of PLC were investigated. The results showed that PLCA exhibited well compatibility with PDLLA, and PLC exhibited well flexibility and its degradation rate was faster than PDLLA.

关 键 词：聚乳酸 共聚物 共混 改性 力学性能 

分 类 号：O633.14[理学—高分子化学]