文献类型：期刊文献

英文题名：Unique Crystallization Behavior of Poly(L-lactic acid) Nucleated by Stereocomplex with Different Fine Structure

作者：Xu, Huijun[1,2];Tang, Songchao[1,2];Chen, Jianding[1,2]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China

年份：2013

卷号：52

期号：7

起止页码：690

外文期刊名：POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING

收录：;EI(收录号：20132216380513);WOS:【SCI-EXPANDED(收录号:WOS:000319039300006)】；

基金：This work was financially supported by National Natural Science Foundation of China (Grant No. 51173041), Shanghai Leading Academic Discipline Project (B502) and Shanghai Key Laboratory Project (08DZ2230500).

语种：英文

外文关键词：Crystallization; Poly(L-lactic acid); Poly(D-lactic acid); Stereocomplex; Structure

摘要：Effect of the addition of poly(D-lactic acid) (PDLA) as stereocomplex (SC) on crystallization behavior of poly(L-lactic acid) (PLLA) had been systemically investigated. The result indicated that the inclusion of PDLA with higher MW into PLLA exhibited lower t(1/2) and showed accelerated crystallization behavior. Meanwhile, SC formed in blends with higher MW of PDLA exhibited enhanced nucleation activity. In combination with both DSC and WAXD analysis, it was believed that nucleation process was more related to the crystalline size of SC. The result in this study would provide guidance for the application of SC as nucleating agent for the PLA-based products.