文献类型：期刊文献

英文题名：Phase Structure of Compatibilized Poly(Lactic Acid)/Linear Low-Density Polyethylene Blends

作者：Su, Zhizhong[1];Li, Qiuying[1];Liu, Yongjun[1];Xu, Haiyan[1];Guo, Weihong[1];Wu, Chifei[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Polymer Alloy Lab, Shanghai 200237, Peoples R China

年份：2009

卷号：48

期号：4

起止页码：823

外文期刊名：JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS

收录：;EI(收录号：20094712487129);WOS:【SCI-EXPANDED(收录号:WOS:000268578200016)】；

基金：The authors wish to thank the Key Project of National Natural Science Foundation of China for its financial support (No. 50733001).

语种：英文

外文关键词：blend; compatilizer; linear low-density polyethylene; phase structure; poly(lactic acid)

摘要：Blends of PLA and linear low-density polyethylene (LLDPE) were compatibilized with glycidyl methacrylate (GMA)-grafted poly(ethylene-octene) copolymer (mPOE). Effects of compatilizer on phase structure of compatibilized PLA/LLDPE were studied by spreading coefficient calculation prediction, scanning electron microscopy, (SEM), differential scanning calorimetry (DSC), and wide-angle X-ray diffraction (WAXD) analysis. The spreading coefficient calculations, based on experimental and calculated surface tension data, show that mPOE spreads on LLDPE extensively to encapsulate LLDPE completely, which is in good agreement with the results of DSC, SEM, and WAXD analysis. The chemical reaction between the end carboxyl groups or end hydroxyl groups of PLA and epoxy groups of mPOE, which is suggested as the driving force leading to an ideal interfacial adhesion between PLA and the dispersed phase, was confirmed by Fourier transform infrared ray (FT-IR) spectroscopy analysis.