A novel and facile preparation method of hollow silica spheres containing small SiO2 cores |
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Authors: | Xinjian Cheng Min Chen Bo You |
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Affiliation: | Department of Materials Science and the Advanced Coatings Research Center of China EducationalMinistry, Advanced Materials Platform, Fudan University, Shanghai 200433, People's Republic of China |
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Abstract: | This article presents a novel and facile preparation method of hollow silica spheres with loading small silica inside. In this approach, positively charged SiO2/polystyrene core‐shell composite particles were synthesized first, when the silica shells from the sol‐gel process of tetraethoxysilane were then coated on the surfaces of composite particles via electrostatic interaction, the polystyrene was dissolved subsequently even synchronously in the same medium to form hollow silica spheres with small silica cores. TEM, SEM, and FTIR measurements were used to characterize these composite spheres. Based on this study, some inorganic or organic compounds could be loaded into these hollow silica spheres. © 2007 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 45: 3431–3439, 2007 |
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Keywords: | hollow sphere loading morphology nanoparticles silica sol‐gel TEM |
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