文献类型：期刊文献

英文题名：Phase separation behavior of an organic hybrid of chlorinated polyethylene and hindered amine during heat-treatment process

作者：Wu, Chifei[1]

机构：[1]E China Univ Sci & Technol, Inst Mat Sci & Technol, Shanghai 200237, Peoples R China

年份：2003

卷号：60

期号：3

起止页码：141

外文期刊名：KOBUNSHI RONBUNSHU

收录：;EI(收录号：2003267518589);WOS:【SCI-EXPANDED(收录号:WOS:000181945300008)】；

语种：英文

外文关键词：chlorinated polyethylene; hindered amine; dynamic mechanical property; phase separation; heat-treatment

摘要：The dynamic mechanical properties and phase separation behavior of an organic hybrid consisting of chlorinated polyethylene (CPE) and tetrakis (2,2,6,6-tetramethyl-4-pipetidyl)-1,2,3,4-butane tetracarboxylate (LA-57) during heat-treatment at 50 degreesC were investigated. The untreated CPE/LA-57 (50/50) sample shows two loss tangent (tan delta) peaks, whereas the samples heat-treated at 50 degreesC show three tan delta peaks. These three tan delta peaks (23, 51 and 68 degreesC) can be attributed to the glass transitions of CPE-rich matrix and LA-57-rich domains resulting from phase separations of initial CPE-rich matrix and initial LA-57-rich domains, respectively. As a result, the temperature dependence of tan delta for an CPE/LA-57 blend can be controlled by selecting heat-treatment conditions.