Please use this identifier to cite or link to this item: https://doi.org/10.1002/adfm.200400179
Title: Preparation of hollow silica nanospheres by surface-initiated atom transfer radical polymerization on polymer latex templates
Authors: Chen, Y.
Kang, E.-T. 
Neoh, K.-G. 
Greiner, A.
Issue Date: Jan-2005
Source: Chen, Y., Kang, E.-T., Neoh, K.-G., Greiner, A. (2005-01). Preparation of hollow silica nanospheres by surface-initiated atom transfer radical polymerization on polymer latex templates. Advanced Functional Materials 15 (1) : 113-117. ScholarBank@NUS Repository. https://doi.org/10.1002/adfm.200400179
Abstract: Poly(vinylbenzyl chloride), (PVBC) latex particles of about 100 nm in size are prepared by emulsion polymerization. Silyl functional groups are introduced onto the PVBC-nanoparticle templates via surface-initiated atom transfer radical polymerization of 3-(trimethoxysilyl)propyl methacrylate. The silyl groups are then converted into a silica shell, approximately 20 nm thick, via a reaction with tetraethoxysilane in ethanolic ammonia. Hollow silica nanospheres are finally generated by thermal decomposition of the PVBC template cores. Field-emission scanning electron microscopy and field-emission transmission electron microscopy are used to characterize the intermediate products and the hollow nanospheres. Fourier-transform infrared spectroscopy results indicate that the polymer cores are completely decomposed.
Source Title: Advanced Functional Materials
URI: http://scholarbank.nus.edu.sg/handle/10635/64459
ISSN: 1616301X
DOI: 10.1002/adfm.200400179
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