Preparation of monodisperse polystyrene particles by radiation-induced dispersion polymerization using waterborne polyurethane as a stabilizer

被引：10
作者：
Zhang, GX [1 ]
Zhang, ZC [1 ]
Xu, CQ [1 ]
Ye, Q [1 ]
机构：
[1] Univ Sci & Technol China, Dept Polymer Sci & Engn, Hefei 230026, Anhui, Peoples R China
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2006年 / 276卷 / 1-3期
关键词：
waterborne polyurethane; styrene; radiation; dispersion polymerization; grafting reaction;
D O I：
10.1016/j.colsurfa.2005.10.018
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Novel waterbome polyester polyurethane (WPU) was synthesized and firstly applied to dispersion polymerization of styrene (PSt). Monodisperse PSt particles were successfully prepared by radiation-induced dispersion polymerization, after dispersed in ethanol-water medium and stabilized by WPU at room temperature. The conversion-time curve was investigated, and the grafting reaction between WPU and PSt was investigated via FT-IR, XPS and H-1 NMR spectrum. Furthermore, the grafting efficiency of WPU (G(wpu), ratio of grafted WPU versus the total content of WPU in the system) was calculated via H-1 NMR spectrum. It shows when vinyl groups are attached to WPU molecules, the diameter of PSt particles decrease. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：72 / 77
页数：6
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