文献类型：期刊文献

中文题名：AlCl_3/含氧引发剂催化体系合成中、高相对分子质量PIB

英文题名：Synthesis of MMPIB and HMPIB catalyzed by AlCl_3/oxygen-containing initiator

作者：陈亮[1];朱志华[1];刘振[1];刘柏平[1]

机构：[1]华东理工大学化学工程联合国家重点实验室,上海市200237

年份：2017

卷号：34

期号：6

起止页码：13

中文期刊名：合成树脂及塑料

外文期刊名：China Synthetic Resin and Plastics

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；

语种：中文

中文关键词：聚异丁烯;三氯化铝;苯乙醚;阳离子聚合

外文关键词：polyisobutylene; aluminum chloride; phenetole; cationic polymerization

摘要：研究了以AlCl_3/含氧引发剂为催化体系的异丁烯阳离子聚合制备中、高相对分子质量聚异丁烯(PIB)的过程,探讨了引发剂种类、引发剂用量、聚合温度、单体用量、溶剂极性及聚合时间等对聚合的影响。结果表明:AlCl_3/苯乙醚作为引发剂,在聚合温度为-60℃的条件下,以二氯甲烷为溶剂,可制备相对分子质量为22.12×10~4的PIB,单体转化率达到99.00%以上;以正己烷与二氯甲烷为溶剂,且正己烷体积分数为50%时,可制备相对分子质量达48.56×10~4的高相对分子质量PIB。
This paper explores the synthesis of middle and high molecular weight polyisobutylene（PIB）via isobutylene cationic polymerization catalyzed by AlCl3/oxygen-containing initiator system. The factors that contribute to the polymerization were investigated which include initiators,catalyst concentration, monomer concentration,solvent polarity,polymerization temperature and time. The results show that medium molecular weight PIB（Mw=22.12×104）is obtained in dichloromethane with AlCl3/phenetole as the initiator system at -60 ℃,in which the conversion of monomers reaches 99.00%. High molecular weight PIB（Mw=48.56×104）is produced with hexane/dichloromethane as the solvent in which the volume fraction of hexane is 50%.