期刊
EUROPEAN POLYMER JOURNAL
卷 44, 期 1, 页码 50-58出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2007.10.019
关键词
acrylamide; controlled/living polymerization
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.
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