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8186938 
Journal Article 
AlCl3/含氧引发剂催化体系合成中, 高相对分子质量PIB 
Chen, L; Zhu, Z; Liu, Z; Liu, B 
2017 
Research Institute of Beijing 
34 
6 
13-16 and 33 
Chinese 
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%. © 2017, Beijing Yanshan Branch, Assets Management Corporation, SINOPEC. All right reserved. 
Aluminum chloride; Cationic polymerization; Phenetole; Polyisobutylene