| 细乳液法合成单核核壳结构氧化硅/聚苯乙烯复合微球 |
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| 引用本文： | 强伟丽,王祎龙,贺枰,徐宏,古宏晨.细乳液法合成单核核壳结构氧化硅/聚苯乙烯复合微球[J].功能材料,2007,38(2):272-275. |
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| 作者姓名： | 强伟丽 王祎龙 贺枰 徐宏 古宏晨 |
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| 作者单位： | 上海交通大学,微纳科学技术研究院,微米/纳米加工技术国家重点实验室,薄膜与微细技术教育部重点实验室,上海,200030 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 采用细乳液聚合法,以3-甲基丙烯酰氧基丙基三甲氧基硅烷(KH570)表面改性的直径50nm的氧化硅粒子为核,在乳化剂、助乳化剂、引发剂存在的情况下制备了小粒径、单核核壳结构氧化硅/聚苯乙烯纳米复合微球.研究表明,苯乙烯的浓度、超声细乳化时间,是制备这种小粒径、单分散、单核核壳结构的氧化硅/聚苯乙烯纳米复合微球的关键因素.透射电镜(TEM)的观察显示,在优化的实验条件下,可以制得平均粒径95nm,壳厚20nm,粒径均一、球形规整度较好、单核核壳结构的氧化硅/聚苯乙烯纳米复合微球.其平均粒径远低于用其它聚合方法制备的复合微球.
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| 关 键 词： | 细乳液聚合 单核核壳结构 纳米复合微球 氧化硅 |
| 文章编号： | 1001-9731(2007)02-0272-04 |
| 修稿时间： | 2006-08-07 |
Synthesis of silica/polystyrene monocore-shell nanocomposite particles via miniemulsion polymerization |
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| QIANG Wei-li,WANG Yi-long,HE Ping,XU Hong,GU Hong-chen.Synthesis of silica/polystyrene monocore-shell nanocomposite particles via miniemulsion polymerization[J].Journal of Functional Materials,2007,38(2):272-275. |
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| Authors: | QIANG Wei-li WANG Yi-long HE Ping XU Hong GU Hong-chen |
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| Affiliation: | National Key Laboratory of Nano/Micro Fabrication Technology, Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Institute of Micro and Nano Science and Technology, Shanghai J iao Tong University, Shanghai 200030,China |
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| Abstract: | The silica/Polystyrene monocore-shell nanocomposite particles(95nm in diameter) were synthesized through miniemulsion polymerization by using sodium dodecyl sulfate surfactant(SDS),hexadecane costabilizer in the presence of silica particles(50nm in diameter) coated with methacryloxy(propyl)trimethoxysilane.Monocore-shell nanocomposite particles were obtained depending on the monomer concentration and the ultrasonication time employed.By adjusting these parameters,it was possible to obtain silica/polystyrene monocore-shell nanocomposite particles. |
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| Keywords: | miniemulsion polymerization monocore-shell nanocomposite particles silica |
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