Study on Mechanism and Kinetics for Ring-Opening Polymerization of Cyclosiloxane

Su-fang Lü; Mei-jiang LI; Ji-rong WU; Jian-xiong JIANG; Guo-qiao LAI; Hua-yu QIU

doi:10.14028/j.cnki.1003-3726.2008.01.006

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Study on Mechanism and Kinetics for Ring-Opening Polymerization of Cyclosiloxane

更新时间：2022-09-18

- Study on Mechanism and Kinetics for Ring-Opening Polymerization of Cyclosiloxane
- Polymer Bulletin Vol. 21, Issue 1, Pages: 61-67(2008)
- 作者机构：
  
  杭州师范大学有机硅化学及材料技术教育部重点实验室和浙江省有机硅材料技术重点实验室，杭州　310012
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2008.01.006
  CLC：
- Published：2008-01，
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Su-fang Lü, Mei-jiang LI, Ji-rong WU, Jian-xiong JIANG, Guo-qiao LAI, Hua-yu QIU. Study on Mechanism and Kinetics for Ring-Opening Polymerization of Cyclosiloxane. [J]. Polymer Bulletin 21(1):61-67(2008)
DOI：

Su-fang Lü, Mei-jiang LI, Ji-rong WU, Jian-xiong JIANG, Guo-qiao LAI, Hua-yu QIU. Study on Mechanism and Kinetics for Ring-Opening Polymerization of Cyclosiloxane. [J]. Polymer Bulletin 21(1):61-67(2008) DOI： 10.14028/j.cnki.1003-3726.2008.01.006.

摘要

环硅氧烷在亲核或亲电催化剂、温度或辐射作用下

可开环聚合生成线型聚硅氧烷

聚合方法主要有本体聚合和乳液聚合。本体聚合可分为阴离子聚合和阳离子聚合

阴离子聚合就是在碱性催化剂(亲核试剂)作用下

使环硅氧烷开环聚合成线型聚硅氧烷的过程;阳离子聚合就是环硅氧烷在酸性催化剂(亲电试剂)作用下的开环聚合反应。乳液聚合则是单体和水(或其它分散介质)并用乳化剂配成乳液状态进行聚合

按所采用的乳化剂种类不同

主要有阴离子型和阳离子型两种类型。本文总结了近几年国内外环硅氧烷本体聚合和乳液聚合的开环聚合机理及动力学研究情况

并对今后此方面的研究进行了展望。

Abstract

Cyclosiloxanes are converted into linear polysiloxane by the action of nucleophilic or electrophilic catalyst

temperature and radiation. The polymerization method is bulk polymerization and emulsion polymerization. Bulk polymerization can be divided into anionic polymerization and cationic polymerization. Anionic polymerization is that cyclosiloxanes are converted into linear polysiloxane by basic catalyst (nucleophilic agent ).Cationic polymerization process is performed by acidic catalyst (electrophilic agent).Emulsion polymerization is polymerized by monomer

water (or other disperse medium)and emulsifying agent. According to emulsifying agent type

emulsion polymerization can also be mainly divided into anionic and cationic type. This review introduces the study on mechanism and kinetics for ring-opening polymerization of bulk polymerization and emulsion polymerization of cyclosiloxane

and at last analyzes the developing trends.

关键词

环硅氧烷阴离子聚合阳离子聚合反应机理动力学

Keywords

CyclosiloxaneAnionic PolymerizationCationic PolymerizationMechanismKinetics

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