CHARACTERIZATION OF IMPACT POLYPROPYLENE COPOLYMERS BY SOLVENT FRACTIONATION

作     者：Xiao-ying Lu Jian-jun Yi Shang-tao Chen Feng-hua Zu Rong-bo Li 

作者机构：Petrochina-Petrochemical Research Institute Being 100195 China 

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

年 卷 期：2012年第30卷第1期

页      面：122-129页

核心收录：

学科分类：081702[工学-化学工艺] 0817[工学-化学工程与技术] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 

基　　金：financially supported by Science and Technology Project of PetroChina Refining&Chemicals Company (No.0904A07-19) Petrochemical Research Institute Innovation Project(No.09-YK-05-20) 

主　　题：Fractionation Impact polypropylene copolymer Composition Chain structure 

摘      要：The compositional heterogeneity of two impact polypropylene copolymers（IPCs） was studied by a combinatory investigation of temperature rising elution fractionation（TREF） and solvent *** chain structures and composition of fractions obtained from solvent fractionation were examined in *** TREF results shows that there are much more E-P segmented copolymer and more uniform distribution of ethylene sequence in IPC-1,which is responsible for its better comprehensive mechanical *** fractions from hexane and heptane are ethylene-propylene rubber phase and E-P block copolymers *** result of solvent fractionation method also shows that custom hexane or heptane extractions can not extract the E-P copolymer completely.