期刊
MATERIALS LETTERS
卷 65, 期 9, 页码 1407-1409出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2011.02.015
关键词
Composite materials; Core-shell particles; Multilayer structure; Organic-inorganic hybrids
资金
- Ministry of Education, Science, Sports, and Culture of Japan
- Grants-in-Aid for Scientific Research [23245018] Funding Source: KAKEN
This paper introduces a stepwise formation method for micro-sized, multilayered core-shell particles comprising an inorganic core, organic inner shell, and inorganic outer shell. A silica core was coated with a polystyrene seed layer, followed by surface seed polymerization with styrene, to afford the inner shell. These particles were then coated with a silica outer shell by a surface sal-gel reaction with tetraethoxysilane. The versatility of this combined surface seed polymerization and sol-gel method is emphasized by the precise control achieved over particle diameter as well as shell thickness and count. Moreover, the organic inner shell can be readily eliminated to afford a single-core-containing micro-capsular structure. (C) 2011 Elsevier B.V. All rights reserved.
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