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Xanthates as chain-transfer agents in controlled radical polymerization (MADIX):: Structural effect of the O-alkyl group

被引：178
作者：
Destarac, M
Bzducha, W
Taton, D
Gauthier-Gillaizeau, I
Zard, SZ
机构：
[1] Ctr Rech Aubervilliers, F-93308 Aubervilliers, France
[2] Univ Bordeaux 1, CNRS, ENSCPB, Lab Chim Polymeres Organ, F-33607 Pessac, France
[3] Ecole Polytech, Dept Organ Synth, F-91128 Palaiseau, France
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2002年 / 23卷 / 17期
关键词：
MADIX; MALDI; molecular weight distribution/molar mass distribution; radical polymerization; xanthates;
D O I：
10.1002/marc.200290002
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 capability of three chain-transfer agents, O-alkyl-S-(1-ethoxycarbonyl)ethyl xanthates (CH3-CHCO2C2H5)S(C=S)OZ', to control the free-radical polymerization of styrene and ethyl acrylate by the MADIX process was examined. The reactivity of the xanthates varied according to the following trend: Z'=CH2CH3<CH2CF3<CH[P(O)(OEt)(2)]CF3. This change in reactivity allowed a lowering of the polydispersity index from 2.0 for Z'=CH2CH3 to 1.15 for Z'=CH[P(O)(OEt)(2)]CF3 in the case of the polymerization of styrene.
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收藏
页码：1049 / 1054
页数：6
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