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Citation: KE Yang-Chuan, WU Tian-Bin, GUO Wen-Li, LI Shu-Xin, DONG Peng. A Novel Catalyst System for IB Polymerization Ⅰ.Homopolymerization and Copolymerization[J]. Chinese Journal of Applied Chemistry, ;2004, 21(2): 164-168. shu

A Novel Catalyst System for IB Polymerization Ⅰ.Homopolymerization and Copolymerization

1.
a University of Petroleum, Beijing 102200;
2.
b Beijing Institute of Petrochemical Technology, Beijing

Corresponding author: KE Yang-Chuan,
Received Date: 30 April 2003
Available Online: 9 June 2003
Fund Project: CNPC创新基金(J0220)与重油国家重点实验室项目资助(J200201)项目 (J0220)与重油国家重点实验室项目资助(J200201)

The catalyst system consisted of benzoyl chloride(BC), TiCl₄ and a third additive is developed to initiate polymerization of isobutene(IB) and its copolymerization with styrene(St). Polyisobutene(PIB) and PIB-PS copolymers of high molecular weight and narrow molecular weight distribution were obtained whereas the high activity of BC could be controlled effectively. Based on the examination of the effects of the catalyst concentration, residual water and the third additive(triethyl amine(TEA)) on the reaction activity, the optimized condition is obtained as[BC]:=2.6 mmol/L and [TEA]/[BC]=1.0 for homopolymerization and n(TiCl₄)/n(BC)=80 and[TEA]/[BC]=4.0 for copolymerization. The BC/TiCl₄/TEA system is found to be the best optimal, it is characteristic of being insensitive to water. PIB with MWD=1.5 and P(IB-co-St) with MWD=2.0 were obtained(only single peak occurred in their GPC curves).
- benzoyl chloride,
- isobutene polymerization,
- copolymerization,
- active cation polymerization
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A Novel Catalyst System for IB Polymerization Ⅰ.Homopolymerization and Copolymerization

南开大学师唯/华北电力大学（保定）刘景维：二维配位聚合物中有序的亲锂冠醚位点用于无枝晶锂沉积

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通讯作者: 陈斌, bchen63@163.com