文献类型：期刊文献

英文题名：Effects of molecule aggregation state of hindered phenol on dynamic mechanical properties of chlorinated polyethylene

作者：Wu, Chi-Fei[1]

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

年份：2003

卷号：22

期号：1

起止页码：7

外文期刊名：CHINESE JOURNAL OF POLYMER SCIENCE

收录：;EI(收录号：20074910956348);WOS:【SCI-EXPANDED(收录号:WOS:000188355900002)】；

语种：英文

外文关键词：hindered phenol; polymorphous; dynamic mechanical properties; chlorinated polyethylene

摘要：Hindered phenol compound 3,9-bis {1,1,1-dimethyl-2[beta-(3 -tert-butyl-4-hydroxy-5-methylphenyl)propionyloxy]ethyl}-2,4,8,10-tetraoxaspiro[5,5]-undecane (AO-80) is a polymorphous material with different physical structures. The initial AO-80 is highly crystalline, whereas AO-80 obtained by cooling from its molten state is an amorphous material. Annealing treatment below the melting point of AO-80 results in structural development. The mixture of chlorinated polyethylene (CPE) and vitrified AO-80 particles exhibits a dramatic change in the dynamic mechanical properties during heat treatment at 130degreesC. This change can be attributed to the decomposition of the vitrified AO-80 particles and the hybridization of two constituents. The vitrified AO-80 particles can crystallize again in a CPE matrix by annealing at 100degreesC, but this crystal is different from that of the initial AO-80 in its microstructure. In addition, the incorporation of CPE chains caused a dramatic increase in the modulus. As a result, the AO-80 crystal particles that contain some CPE chains act as multifunctional crosslinks and the CPE/AO-80 hybrid was found to be a new type of elastomer.