SYNTHESIS OF TELECHELIC POLYISOBUTYLENE——THE REACTION OF 1.1-DIPHENYL ETHYLENE CAPPING ON POLYISOBUTYLENE CARBOCATION

CAO Xianyi; WANG Qiang; ZHU Hui; WU Guanying

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SYNTHESIS OF TELECHELIC POLYISOBUTYLENE——THE REACTION OF 1.1-DIPHENYL ETHYLENE CAPPING ON POLYISOBUTYLENE CARBOCATION

Research Bulletin | 更新时间：2021-03-19

- SYNTHESIS OF TELECHELIC POLYISOBUTYLENE——THE REACTION OF 1.1-DIPHENYL ETHYLENE CAPPING ON POLYISOBUTYLENE CARBOCATION
- Acta Polymerica Sinica Issue 5, Pages: 633-636(1996)
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- Published：20 October 1996，
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CAO Xianyi, WANG Qiang, ZHU Hui, WU Guanying. SYNTHESIS OF TELECHELIC POLYISOBUTYLENE——THE REACTION OF 1.1-DIPHENYL ETHYLENE CAPPING ON POLYISOBUTYLENE CARBOCATION. [J]. Acta Polymerica Sinica (5):633-636(1996)
DOI：

CAO Xianyi, WANG Qiang, ZHU Hui, WU Guanying. SYNTHESIS OF TELECHELIC POLYISOBUTYLENE——THE REACTION OF 1.1-DIPHENYL ETHYLENE CAPPING ON POLYISOBUTYLENE CARBOCATION. [J]. Acta Polymerica Sinica (5):633-636(1996) DOI：

摘要

苯端基聚异丁烯的合成──１．１－二苯基乙烯对聚异丁烯阳离子端基的封端反应曹宪一

王强

朱晖

武冠英（北京化工大学高分子材料研究所北京１０００２９）关键词异丁烯

阳离子聚合

封端反应为了合成遥爪聚异丁烯

需对异丁烯（ＩＢ）聚合的终止方式进行控制

但目前通过ＩＢ的活性阳离子聚合一般只能得到叔氯端基．通过控制终止方式

即以各种亲核试剂终止ＰＩＢ阳离子

以期得到预期官能团的尝试

均告失败．控制ＩＢ聚?...

Abstract

In order tO synthesize telechelic polyisobutylene

the controllable terminationis usually required This paper reported the reaction of 1.1-diphenyl ethylene(DPE)with polyisobutylene(PIB) cation．It was found that DPE can quickly react with PIBcation at low temperature and form more stable 1.1-diphenyl alkyl cation．The lowtemperature is favorable for capping reaction

because the reaction is then reversible．The ratio of DPE to initiator have no great influence on the reaction．Theunsymmetric telechelic PIB with double bond completely at the chain end wasobtained．

关键词

异丁烯阳离子聚合封端反应

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