Journal
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
Volume 48, Issue 6, Pages 1332-1338Publisher
WILEY
DOI: 10.1002/pola.23894
Keywords
hollow structures; monodisperse materials: silica
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Funding
- National Science Foundation of China [20704019]
- advanced professional faculty foundation of Jiangsu University [06jdg054]
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This article presents a facile, effective, mild synthesis process for well-defined hollow spheres by using cationic polystyrene (PS) submicro-particles as templates. In this approach, the cationic PS templates can be first prepared via emulsifier-free polymerization by using the cationic monomer 2-(methacryloyloxy) ethyltrimethylammonium chloride as comonomer, then, the silica shells from the sol-gel process of tetraethoxysilane were coated on the surfaces of template particles via electrostatic interaction, finally the PS was dissolved in situ by modification of the reaction conditions in the same medium to form monodisperse hollow silica spheres with controlled shell thickness. Fourier transform-infrared spectroscopy, thermogravimetric analysis, Brunauer-Emmett-Teller, transmission electron microscopy, and scanning electron microscope measurements were used to characterize these hollow silica spheres. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 13321338, 2010
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