Organosilica Nanoshells with Thin Silica Cross-Linking by Miniemulsion Periphery Polymerization (MEPP)

Organosilica nanoshells with a thin silica cross-link and large internal cavity have been prepared via the miniemulsion periphery polymerization (MEPP) process. Triethoxysilyl-terminated triblock copolymer surfactants were used to stabilize an oil-in-water miniemulsion. Subsequent cross-linking of t...

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Bibliographic Details
Published in:Macromolecules 2010-08, Vol.43 (15), p.6343-6347
Main Authors: McHale, Ronan, Ghasdian, Negar, Hondow, Nicole S, Richardson, Peter M, Voice, Alison M, Brydson, Rik, Wang, Xiaosong
Format: Article
Language:English
Subjects:
Applied sciences
Composites
Exact sciences and technology
Forms of application and semi-finished materials
Polymer industry, paints, wood
Technology of polymers
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Summary:Organosilica nanoshells with a thin silica cross-link and large internal cavity have been prepared via the miniemulsion periphery polymerization (MEPP) process. Triethoxysilyl-terminated triblock copolymer surfactants were used to stabilize an oil-in-water miniemulsion. Subsequent cross-linking of the terminal silyl functionality yielded hybrid (organosilica) hollow nanoshells. The unique structural design of the shells (large internal cavity and thin porous cross-link) ensured an interesting combination of properties, including high thermal stability, high efficiency of encapsulation, and trans-shell diffusion of ions.
ISSN:0024-9297
1520-5835
DOI:10.1021/ma1010759