Nitroxide-mediated radical polymerization of acrylamide in water solution

被引:48
作者
Grassl, Bruno [1 ]
Clisson, Gerald [1 ]
Khoukh, Abdel [1 ]
Billon, Laurent [1 ]
机构
[1] EPCP, CNRS, UMR 5254, Equipe Phys & Chim polymeres IPREM, F-64053 Pau, France
关键词
acrylamide; controlled/living polymerization;
D O I
10.1016/j.eurpolymj.2007.10.019
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
This study shows that reasonably controlled nitroxide-mediated polymerization of acrylamide is achieved in pure water solution at 120 degrees C and high concentration (40 wt%), using a combination of a conventional hydrosoluble radical initiator (Vazo56) and a beta-phosphonylated nitroxide, SG1. Moreover, some chain extensions can be performed from a polyacrylamide macroinitiator. Under these experimental conditions, we have demonstrated the conservation of the acrylamide structure without hydrolysis side reactions. The physico-chemical characterizations of polymers obtained from this method demonstrates that the controlled growing chain arises as a star-like shape from the hydrophobic core composed of SG1-functionalized polyacrylamide in the presence of a slight excess of SG1. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:50 / 58
页数:9
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