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篇目详细内容 |
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【篇名】 |
Preparation of raspberry-like PMMA/SiO2 nanocomposite particles |
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【刊名】 |
Frontiers of Chemistry in China |
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【刊名缩写】 |
Front. Chem. China |
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【ISSN】 |
1673-3495 |
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【EISSN】 |
1673-3614 |
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【DOI】 |
10.1007/s11458-006-0025-x |
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【出版社】 |
Higher Education Press and Springer-Verlag |
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【出版年】 |
2006 |
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【卷期】 |
1
卷3期 |
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【页码】 |
340-344
页,共
5
页 |
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【作者】 |
Chen Min;
You Bo;
Zhou Shuxue;
Wu Limin;
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【关键词】 |
raspberry-like structure; nanocomposite particles; nano-SiO2 |
【摘要】 |
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Water-borne raspberry-like PMMA/SiO2 nanocom-posite particles were prepared via free radical copolymerization of methyl methacrylate (MMA) with 1- vinylimidazole (1-VID) in the presence of ultrafine aqueous silica sols. The acid-base interaction between hydroxyl groups (acidic) of silica surfaces and amino groups (basic) of 1-VID was strong enough for promoting the formation of long-standing stable PMMA/SiO2 nanocomposite particles when 10 mol% or more 1-VID as auxiliary monomer was used. The average particle sizes and the silica contents of the nanocomposite particles were in the ranges from 120?330 nm and 15%?20%, respectively. TEM and SEM observations indicated a raspberry-like morphology of the obtained nanocomposite particles. |
