摘要
选取了3种具有相近相对分子质量及其分布的氯化聚氯乙烯(CPVC)树脂,通过固态核磁对CPVC树脂的序列结构进行了表征,并对CPVC树脂中烯丙基氯的生成机理进行了分析,在此基础上建立了计算烯丙基氯含量的方法。运用Brabender流变仪研究了3种CPVC树脂的热稳定性。结果表明,相对分子质量及其分布相近的3种CPVC树脂,随着烯丙基氯含量的降低,树脂的热稳定性能越来越好。
Three kinds of chlorinated poly（vinyl chloride）（CPVC） resin with similar molecular weight and distribution were subjected to 13C-NMR analysis in order to determine their sequence structure. According to the formation mechanism of allyl chlorine, a method to calculate the allyl chlorine content of CPVC was established. Thermal stability of the CPVC resins was studied using Brabender rheometer. It was found that the thermal stability of CPVC increased with decreasing allyl chlorine content.
出处
《中国塑料》
CAS
CSCD
北大核心
2009年第9期49-53,共5页
China Plastics
基金
国家支撑计划资助项目(2007BAE50B02)
关键词
氯化聚氯乙烯
固态核磁
烯丙基氯
含量
热稳定性
chlorinated poly（vinyl chloride） solid-nuclear magnetic resonance allyl chloride content thermal stability
