| Surface Modification of Nanometer TiO2 and Effect of Preparing TiO2/P（St-co-DVB） Composites by Dispersion Polymerization |
| |
| 引用本文： | 王静,冯亚青,李祥高,谢建宇,李刚.Surface Modification of Nanometer TiO2 and Effect of Preparing TiO2/P（St-co-DVB） Composites by Dispersion Polymerization[J].天津大学学报(英文版),2006,12(4):252-257. |
| |
| 作者姓名： | 王静 冯亚青 李祥高 谢建宇 李刚 |
| |
| 作者单位： | School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China，School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China，School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China，School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China，School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China |
| |
| 基金项目： | Supported by National High Technology Research and Development Program of China (863 Program) (No. 2004AA302010) and Natural Science Foundation of Tianjin (No. 043186411) . |
| |
| 摘 要： | Surface modification of nanometer titanium dioxide particles and effect of preparing TiO_2/P (St-co-DVB) composites by dispersion polymerization are described. To introduce vinyl group onto the surface of titanium dioxide particles, the titanium dioxide particles were surface-modified with a silicane coupling agent, methacryloylpropyltrimethoxysilicane. Polymer encapsulation in the presence of either modified-titanium dioxide particles or unmodified-titanium dioxide particles was carried out by dispersion polymerization of styrene, divinylbenzene in ethanol medium with polyvinylpyrroli-done as stabilizer, and 2, 2'-azobis( isobutyronitrile) as initiator. The modified-titanium dioxide was analyzed with Fourier-transform infrared spectroscopy(FTIR), UV-Vis spectrophotometer, thermo-gravimetric analysis and transmission microscope. The polymer encapsulation of modified-titanium dioxide and unmodified-titanium dioxide particles was confirmed with FTIR and transmission electron microscope. Results show that compared with unmodified-titanium dioxide, modified-titanium dioxide is more suitable for preparing inorganic core/organic shell composites.
|
| 关 键 词： | 表面改性 二氧化钛 聚合 硅烷 复合材料 |
| 收稿时间： | 2005-07-28 |
Surface Modification of Nanometer TiO2 and Effect of Preparing TiO2/P(St-co-DVB) Composites by Dispersion Polymerization |
| |
| WANG Jing,FENG Yaqing,LI Xianggao,XIE Jianyu,LI Gang.Surface Modification of Nanometer TiO2 and Effect of Preparing TiO2/P(St-co-DVB) Composites by Dispersion Polymerization[J].Transactions of Tianjin University,2006,12(4):252-257. |
| |
| Authors: | WANG Jing FENG Yaqing LI Xianggao XIE Jianyu LI Gang |
| |
| Abstract: | Surface modification of nanometer titanium dioxide particles and effect of preparing TiO_2/P (St-co-DVB) composites by dispersion polymerization are described. To introduce vinyl group onto the surface of titanium dioxide particles, the titanium dioxide particles were surface-modified with a silicane coupling agent, methacryloylpropyltrimethoxysilicane. Polymer encapsulation in the presence of either modified-titanium dioxide particles or unmodified-titanium dioxide particles was carried out by dispersion polymerization of styrene, divinylbenzene in ethanol medium with polyvinylpyrroli-done as stabilizer, and 2, 2'-azobis( isobutyronitrile) as initiator. The modified-titanium dioxide was analyzed with Fourier-transform infrared spectroscopy(FTIR), UV-Vis spectrophotometer, thermo-gravimetric analysis and transmission microscope. The polymer encapsulation of modified-titanium dioxide and unmodified-titanium dioxide particles was confirmed with FTIR and transmission electron microscope. Results show that compared with unmodified-titanium dioxide, modified-titanium dioxide is more suitable for preparing inorganic core/organic shell composites. |
| |
| Keywords: | surface modification titanium dioxide polymerization silicane coupling agent composites |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
