THE MECHANISM OF THE POLYMERIZATION OF NORMAL-BUTYL ACRYLATE INITIATED WITH N,N-DIETHYL DITHIOCARBAMATE DERIVATIVES

被引：91
|
作者：
LAMBRINOS, P [1 ]
TARDI, M [1 ]
POLTON, A [1 ]
SIGWALT, P [1 ]
机构：
[1] UNIV PARIS 06,CHIM MACROMOLEC LAB,UA 24,4 PL JUSSIEU,F-75252 PARIS 05,FRANCE
来源：
EUROPEAN POLYMER JOURNAL | 1990年 / 26卷 / 10期
关键词：
D O I：
10.1016/0014-3057(90)90014-U
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The kinetics of the photo-initiated polymerization of n.butyl acrylate by p-xylylene bis-(N,N-diethyldithiocarbamate) have been investigated in order to check the living character of this polymerization initiated with an "iniferter". The reaction shows some features of a living system viz. growth of the molecular weight during the reaction under chosen conditions (high [M]/[I] ratios) and preparation of block copolymers. This confirms the existence of a reversible termination reaction between the growing chains and the dithiocarbamyl radicals. However, evidence has been found for the intervention of side reactions (formation of tetraethylthiuram disulphide, and decrease of the functionality of the polymers during the polymerization), indicating that the polymerization is not strictly living. © 1990.
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页码：1125 / 1135
页数：11
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