Carbocationic Polymerization of Isobutylene by the Initiator System of Diethyl Aluminium Chloride/Benzyl Chloride/Pyridine

Chem. J. Chinese Universities ›› 1993, Vol. 14 ›› Issue (10): 1476.

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Carbocationic Polymerization of Isobutylene by the Initiator System of Diethyl Aluminium Chloride/Benzyl Chloride/Pyridine

CAO Xian-Yi, ZHANG Chuan-Bai, WU Guan-Ying

Research Institute of Polymer Materials, Beijing Institute of Chemical Technology, Beijing, 100029

Received:1992-10-30 Revised:1993-04-21 Online:1993-10-24 Published:1993-10-24

Abstract

Abstract: Carbocationic polymerization of isobutylene was initiated by the system of diethyl aluminium chloride/benzyl chloride/pyridine.It was found that in the presence of electron donor (pyridine), the initiator efficiency increased and the molecular wieght distribution of the polymers narrowed.The linear relationship between the molecular weight and amount of poly-isobutylene which was prepared by the increment monomer addition experiment, and its amount showed that the polymerization got some living features.

Key words: Isobutylene, Carbocationic polymerization, Initiator, Diethyl aluminium chloride, Electron donor

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CAO Xian-Yi, ZHANG Chuan-Bai, WU Guan-Ying . Carbocationic Polymerization of Isobutylene by the Initiator System of Diethyl Aluminium Chloride/Benzyl Chloride/Pyridine[J]. Chem. J. Chinese Universities, 1993, 14(10): 1476.

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Carbocationic Polymerization of Isobutylene by the Initiator System of Diethyl Aluminium Chloride/Benzyl Chloride/Pyridine

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