| MORPHOLOGY EVOLUTION OF POLY（St-co-BuA）/SILICA NANOCOMPOSITE PARTICLES SYNTHESIZED BY EMULSION POLYMERIZATION |
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| 引用本文： | Hua Li 周树学 Bo You Li-min Wu.MORPHOLOGY EVOLUTION OF POLY（St-co-BuA）/SILICA NANOCOMPOSITE PARTICLES SYNTHESIZED BY EMULSION POLYMERIZATION[J].高分子科学,2006,0(3):323-331. |
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| 作者姓名： | Hua Li 周树学 Bo You Li-min Wu |
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| 作者单位： | [1]Department of Materials Science, The Advanced Coatings Research Center of China Educational Ministry, Fudan University, Shanghai 200433, China [2]Faculty of Chemistry and Materials Science, Hubei University, Wuhan 430062, China |
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| 基金项目： | This research was financially supported by the Key Project of China Educational Ministry （No. 103064） and the Doctoral Foundation of University （No. 20020246031）. |
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| 摘 要： | Poly（St-co-BuA）/silica nanocomposite latexes were synthesized via conventional emulsion polymerization in the presence of 3-（trimethoxysilyl）propyl methacrylate modified colloidal nano-silica. The effects of surface property, particle size and content of colloidal nano-silica as well as the concentrations of monomer and surfactant on the morphology of nanocomposite latex particles were investigated by transmission electron microscope （TEM） and scanning electron microscope （SEM） in detail. Various interesting morphologies such as grape-like, Chinese gooseberry-like, pomegranate-like and normal core-shell structures were observed. Droplet nucleation mechanism competing with micelle nucleation mechanism was proposed to explain the morphological evolution of the nanocomposite particles.
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| 关 键 词： | 形态 聚（St-co-BuA） 硅纳米合成物 乳液聚合 纳米硅胶 表面改性 |
| 收稿时间： | 2005-08-01 |
| 修稿时间： | 2005-09-08 |
MORPHOLOGY EVOLUTION OF POLY(St-co-BuA)/SILICA NANOCOMPOSITE PARTICLES SYNTHESIZED BY EMULSION POLYMERIZATION |
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| Hua Li,Shu-xue Zhou,Bo Youa,Li-min Wu.MORPHOLOGY EVOLUTION OF POLY(St-co-BuA)/SILICA NANOCOMPOSITE PARTICLES SYNTHESIZED BY EMULSION POLYMERIZATION[J].Chinese Journal of Polymer Science,2006,0(3):323-331. |
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| Authors: | Hua Li Shu-xue Zhou Bo Youa Li-min Wu |
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| Institution: | Department of Materials Science, The Advanced Coatings Research Center of China Educational Ministry, Fudan University, Shanghai 200433, China |
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| Abstract: | Poly(St-co-BuA)/silica nanocomposite latexes were synthesized via conventional emulsion polymerization in the presence of 3-(trimethoxysilyl)propyl methacrylate modified colloidal nano-silica. The effects of surface property, particle size and content of colloidal nano-silica as well as the concentrations of monomer and surfactant on the morphology of nanocomposite latex particles were investigated by transmission electron microscope (TEM) and scanning electron microscope (SEM) in detail. Various interesting morphologies such as grape-like, Chinese gooseberry-like, pomegranate-like and normal core-shell structures were observed. Droplet nucleation mechanism competing with micelle nucleation mechanism was proposed to explain the morphological evolution of the nanocomposite particles. |
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| Keywords: | Morphology Colloidal nano-silica Nanocomposite particle Emulsion polymerization EMULSION POLYMERIZATION EVOLUTION MORPHOLOGY SYNTHESIZED NANOCOMPOSITE PARTICLES Droplet micelle nucleation mechanism explain morphological evolution nanocomposite particles normal structures Chinese interesting scanning electron microscope size content concentrations monomer |
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