聚乳酸/聚己内酯/聚(ε-己内酯-L-丙交酯)共聚物三元共混体系的结构与性能

张涵 孙志强 庞烜 周林尧 李帅 孙海波 陈文启 陈学思

引用本文: 张涵, 孙志强, 庞烜, 周林尧, 李帅, 孙海波, 陈文启, 陈学思. 聚乳酸/聚己内酯/聚(ε-己内酯-L-丙交酯)共聚物三元共混体系的结构与性能[J]. 应用化学, 2016, 33(9): 1026-1032. doi: 10.11944/j.issn.1000-0518.2016.09.150429 shu
Citation:  ZHANG Han, SUN Zhiqiang, PANG Xuan, ZHOU Linyao, LI Shuai, SUN Haibo, CHEN Wenqi, CHEN Xuesi. Structure and Properties of Polylactide/Polycaprolactone/Poly(ε-caprolactone-L-lactide) Ternary Blends[J]. Chinese Journal of Applied Chemistry, 2016, 33(9): 1026-1032. doi: 10.11944/j.issn.1000-0518.2016.09.150429 shu

聚乳酸/聚己内酯/聚(ε-己内酯-L-丙交酯)共聚物三元共混体系的结构与性能

    通讯作者: 庞烜,副研究员;Tel/Fax:0431-85262197;E-mail:xpang@ciac.ac.cn;研究方向:生物可降解高分子的合成与应用
  • 基金项目:

    国家自然科学基金资助项目(51173183,21574124,51203155) 

摘要: 通过开环共聚合,合成了3种不同单元比例的ε-己内酯(ε-CL)与L-丙交酯(L-LA)的共聚物P(CL-co-LA)。通过熔融共混制备了聚乳酸(PLA)/聚己内酯(PCL)/P(CL-co-LA)三元共混材料,研究了P(CL-co-LA)对共混材料微观形貌、热性能以及力学性能的影响。结果表明,共聚物P(CL-co-LA)作为PLA/PCL不相容体系的界面增容剂,减小了PCL分散相的尺寸,改善了PLA/PCL共混体系的相容性,提高了共混材料的韧性。固定m(PLA):m(PCL):m(P(CL-co-LA))=80:20:10时,以P(CL49/LA51)(其中数字代表摩尔分数(%))作为界面增容剂效果最佳,共混材料的断裂伸长率可达到(210±30)%。

English

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  • 收稿日期:  2015-12-02
  • 网络出版日期:  2016-02-29
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