ET4NHF2-CATALYZED GROUP TRANSFER POLYMERIZATION

ZOU You-si; XIA Hai-ping; PAN Rong-hua

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ET4NHF2-CATALYZED GROUP TRANSFER POLYMERIZATION

Research Article | 更新时间：2021-03-19

- ET4NHF2-CATALYZED GROUP TRANSFER POLYMERIZATION
- Acta Polymerica Sinica Issue 3, Pages: 308-313(1990)
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- Published：20 June 1990，
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ZOU You-si, XIA Hai-ping, PAN Rong-hua. ET4NHF2-CATALYZED GROUP TRANSFER POLYMERIZATION. [J]. Acta Polymerica Sinica (3):308-313(1990)
DOI：

ZOU You-si, XIA Hai-ping, PAN Rong-hua. ET4NHF2-CATALYZED GROUP TRANSFER POLYMERIZATION. [J]. Acta Polymerica Sinica (3):308-313(1990) DOI：

摘要

用三种引发剂进行了二氟化氢负离子催化的基团转移聚合

得到了窄分布的

实测分子量和理论分子量相近的一系列聚甲基丙烯酸酯产物

合成了分子量达20万以上的聚甲基丙烯酸甲酯

探讨了引发剂和催化剂用量对产物的分子量和分散性的影响

认为过量的催化剂使产物的分散性加大和实测(?)_n大于理论M_n。得到了控制聚合的最佳催化剂和引发剂浓度比。

Abstract

This paper reports on some first results on the group transfer polymerization (GTP) of several methacrylates

with ethyl 3-ethoxy-3-trimethylsiloxy acrylate (ETSA)

ethyl 2-butyl-3-ethoxy-3-trimethylsiloxy acrylate (BTSA) and dimethyl ketene methyl trimethylsilyl acetal (MTS) as initiator and Et4 NHF2 as catalyst. Polymers with narrow molecular weight distribution and predetermined molecular weight were obtained. PMMA with higher polydispersities are obtained when highl levels of the catalyst are used. The effect of the catalyst concentration onmonomer conversion was studied. Some PMMA of high molecular weight (Mn>2×105) were obtained.

关键词

基团转移聚合聚甲基丙烯酸酯聚甲基丙烯酸甲酯四乙基二氟化氢铵负离子催化剂

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Institute of Polymer Science,School of Chemistry and Chemical Engineering Zhongshan University

中山大学化学与化学工程学院高分子研究所

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