Miscibility and Crystallization Behavior of Novel Branched Poly(ethylene succinate)/Poly(vinyl phenol) Blends

作     者：Kang-Jing Zhang Zhao-Bin Qiu Kang-Jing Zhang;Zhao-Bin Qiu

作者机构：State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology 

出 版 物：《Chinese Journal of Polymer Science》 (高分子科学（英文版）)

年 卷 期：2019年第37卷第11期

页      面：1169-1175页

核心收录：

学科分类：07[理学] 0703[理学-化学] 

基　　金：financially supported by the National Natural Science Foundation of China (No. 51573016) 

主　　题：Polymer blends Miscibility Crystallization behavior 

摘      要：The blends of novel branched poly(ethylene succinate)(b-PES) and poly(vinyl phenol)(PVPh) were prepared v ia a solution and casting method. The miscibility, melting behavior, spherulitic morphology and growth, and crystal structure of b-PES/PVPh blends were investigated in detail. PVPh was miscible with b-PES over the whole compositions as evidenced by the single composition dependent glass transition temperature. Double melting behavior occurred in neat b-PES and b-PES/PVPh 85/15 blend after isothermal melt crystallization, which may be explained by the melting, recrystallization, and remelting mechanism. In addition, the depression of equilibrium melting point of an 85/15 blend was also found, confirming again the miscibility between the two components. The addition of PVPh caused the decrease of nucleation density and crystal growth rates of b-PES spherulites in the blend. The crystal structure of b- PES was unchanged before and after blending;moreover, the crystallinity of b-PES decreased slightly in the blend.