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| 磁性聚醋酸乙烯酯微球的制备及表面功能化修饰 | |
| 引用本文： | 余煜玺,洪卫,徐宏建,刘先桥.磁性聚醋酸乙烯酯微球的制备及表面功能化修饰[J].硅酸盐学报,2009,37(9). |
| 作者姓名： | 余煜玺 洪卫 徐宏建 刘先桥 |
| 作者单位： | 1. 厦门大学材料学院材料科学与工程系,福建,厦门,361005 2. 厦门大学医院,福建,厦门,361005 3. 上海电力学院环境工程系,上海,201203 4. 上海浦东张江高科技园蔡伦路600号,上海,201203 |
| 基金项目： | 福建省自然科学基金(2009J05133)资助项目 |
| 摘 要： | 在油酸包覆的Fe3O4磁流体存在条件下,以醋酸乙烯酯为聚合单体,二乙烯苯为交联剂,过氧化苯甲酰为引发剂,聚乙烯醇为稳定剂,采用改良悬浮聚合法制备了粒径在数微米之间的磁性聚醋酸乙烯酯微球,对制备的磁性微球进行了表面功能化修饰。利用扫描电镜、振动样品磁强计和Fourier变换红外光谱分别检测了磁性微球的形貌、磁性能以及微球表面修饰的活性功能基团。结果表明:微球大小在1～7μm,平均粒径为3.8μm,粒径分布相对较窄;比饱和磁化强度为15.0emu/g,具有超顺磁性。 |
| 关 键 词： | 聚醋酸乙烯酯 微球 磁性 悬浮聚合 表面修饰 |
PREPARATION AND SURFACE FUNCTIONAL MODIFICATION OF MAGNETIC POLYVINYL ACETATE MICROSPHERES |
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| YU Yuxi,HONG Wei,XU Hongjian,LIU Xianqiao.PREPARATION AND SURFACE FUNCTIONAL MODIFICATION OF MAGNETIC POLYVINYL ACETATE MICROSPHERES[J].Journal of The Chinese Ceramic Society,2009,37(9). | |
| Authors: | YU Yuxi HONG Wei XU Hongjian LIU Xianqiao |
| Affiliation: | 1. Department of Materials Science and Engineering;College of Materials;Xiamen University;Xiamen 361005;Fujian;2. Xiamen University Hospital;3. Department of Environment Engineering;Shanghai University of Electric Power;Shanghai 201203;4. Zhangjiang Hi-Tech Park;600 Cailun Road;Pudong New District;China |
| Abstract: | Micro-size magnetic polyvinyl acetate microspheres were synthesized via a modification suspension polymerization of monomer vinyl acetate,cross-linker divinylbenzene,initiator benzoyl peroxide,and stabilizer polyvinyl alcohol in the presence of oleic-coated magnetite(Fe3O4) . Then,surface functional modification was performed. The morphology and properties of the magnetic microspheres were characterized with the scanning electronic microscope,vibrating sample magnetometer and Fourier transform infrared spec... |
| Keywords: | polyvinyl acetate microspheres magnetic suspension polymerization surface modification |
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