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Pickering stabilization as a tool in the fabrication of complex nanopatterned silica microcapsules
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Bon, Stefan Antonius Franciscus and Chen, Tao (2007) Pickering stabilization as a tool in the fabrication of complex nanopatterned silica microcapsules. LANGMUIR, 23 (19). pp. 9527-9530. doi:10.1021/la7016769 ISSN 0743-7463.
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Official URL: http://dx.doi.org/10.1021/la7016769
Abstract
Complex silica-based microcapsules with nanopatterned features were made using Pickering stabilization as a fabrication tool. A sequential two-step liquid-liquid interface-driven assembly process was employed using Laponite clay discs and Laponite armored polystyrene latex particles as solids to stabilize emulsion droplets on two different length scales. The discotic Laponite particles and poly(diethoxysiloxane) were used as silica sources. The ethoxy groups of the poly(diethoxysiloxane) were removed via a triethylamine-catalyzed interfacial hydrolysis and sol-gel reaction. The organic components were removed via a calcination step. The two-stage templating route provided siliceous microcapsules of which the capsule walls were decorated on either the outside or inside with nanocapsules composed of Laponite clay.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry T Technology > TA Engineering (General). Civil engineering (General) |
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Journal or Publication Title: | LANGMUIR | ||||
Publisher: | AMER CHEMICAL SOC | ||||
ISSN: | 0743-7463 | ||||
Official Date: | 11 September 2007 | ||||
Dates: |
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Volume: | 23 | ||||
Number: | 19 | ||||
Number of Pages: | 4 | ||||
Page Range: | pp. 9527-9530 | ||||
DOI: | 10.1021/la7016769 | ||||
Publication Status: | Published |
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