STABILIZATION OF THE LIVING END IN THE ANIONIC-POLYMERIZATION OF 2-(TRIMETHYLSILOXY)ETHYL METHACRYLATE - ROLE OF SURROUNDING MONOMER MOLECULES

被引：14

作者：

NAGASAKI, Y ^{[1
]}

ITO, H ^{[1
]}

KATO, M ^{[1
]}

KATAOKA, K ^{[1
]}

TSURUTA, T ^{[1
]}

机构：

[1] SCI UNIV TOKYO,BIOSCI RES INST,NODA,CHIBA 278,JAPAN

来源：

POLYMER BULLETIN | 1995年 / 35卷 / 1-2期

关键词：

D O I：

10.1007/BF00312905

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In an anionic polymerization of 2-(trimethylsiloxy)ethyl methacrylate (ProHEMA), the loading rate of the monomer was found to influence the polymerization. When the monomer loading was run quickly via a dropping funnel, the ProHEMA polymerization occurred quantitatively to form poly(ProHEMA) with a narrow molecular weight distribution (MWD). Based on the results, we propose a mechanism in which monomer molecules surrounding the propagating species take part, viz, the surrounding monomer molecules prevent a possible termination reaction. In the presence of LiCl for ProHEMA polymerization, a polymer with a rather narrower MWD was obtained.

引用

页码：137 / 142

页数：6

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