共 50 条
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
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
相关论文