Author： Chen Jianfang Zhang Hailiang Wang Xingzhu Liao Xiaojuan Wang Xiayu
Publisher： Taylor & Francis Ltd
ISSN： 1060-1325
Source： Journal of Macromolecular Science, Part A: Pure and Applied Chemistry, Vol.43, Iss.2, 2006-02, pp. : 269-277
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Abstract
Star-shaped poly(ethylene oxide) (PEO) was prepared by atom transfer radical polymerization (ATRP) with a 2-bromoisobutyryl PEO ester as a macroinitiator. Divinylbenzene (DVB) and ethylene glycol dimethacrylate were employed as the coupling reagents. Several factors pertinent to star polymer formation are: type of coupling reagents and solvents, feed ratio of DVB to the macroinitiator, and reaction time. These were studied and used to optimize the star formation process. The optimum yield of star polymer was ca. 90–98%.
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