Living radical graft polymerization of styrene to styrene butadiene rubber (SBR) with 2,2,6,6-tetramethyl 1-piperidinyloxy (TEMPO)

被引:35
|
作者
Abbasian, M
Namazi, H
Entezami, AA [1 ]
机构
[1] Univ Tabriz, Lab Polymers, Fac Chem, Tabriz, Iran
[2] Fac Chem, Lab Denderimers & Nat Polymers, Tabriz, Iran
关键词
styrene butadiene rubber (SBR); radical polymerization; graft copolymers; TEMPO; polystyrene;
D O I
10.1002/pat.515
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Well-defined graft copolymers with styrene butadiene rubber (SBR) backbones and polystyrene branches were synthesized by living free radical polymerization (LFRP) techniques. Thus 1benzoyl-2-phenyl-2-(2',2',6',6'-tetramethyl-piperidinyl-l'-oxy)ethane (BZ-TEMPO) was synthesized and hydrolyzed to the corresponding 1-hydroxyl derivative. This functional nitroxyl compound was coupled with brominated SBR (SBR-Br). The resulting macroinitiator (SBR-TEMPO) for "living" free radical polymerization was then heated in the presence of styrene for the formation of the controlled graft copolymer. H-1-NMR and IR spectroscopy were used to investigate the structure of the polymers. Copyright (C) 2004 John Wiley Sons, Ltd.
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页码:606 / 611
页数:6
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