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Synthesis of macroporous silica from solid-stabilised emulsion templates

Aranberri, Ibon; Binks, Bernard P.; Fletcher, Paul D. I.; Clint, John H.; Fletcher, P. D I

Authors

Ibon Aranberri

Paul D. I. Fletcher

John H. Clint

P. D I Fletcher



Abstract

We have investigated the microstructures of the solid residue left behind after the evaporation of solid-stabilised emulsions. The correlation between the microstructure and the properties and preparation conditions of the emulsions will be thoroughly discussed. The type of microstructure is related to the conditions (oil type, oil content, particle type, particle concentration and emulsion type) of the initial emulsion. Solid residues left after evaporation of oil-in-water emulsions containing volatile oils (relative to water) show a "knobbly" microstructure. When oils with similar or lower vapour pressure to that of water were used, "sponge-like" structures were obtained. For emulsions containing volatile oils, the mean drop diameter is similar to the mean pore diameter, whereas when oils with low vapour pressure are used, the pores are much smaller. Finally, this paper will illustrate that stable toluene-in-water emulsions leave porous microstructures, whereas water-in-toluene emulsions and emulsions close to the phase inversion show sheet-like or "knobbly" structure. © 2008 Springer Science+Business Media, LLC.

Journal Article Type Article
Publication Date Aug 1, 2009
Journal JOURNAL OF POROUS MATERIALS
Print ISSN 1380-2224
Electronic ISSN 1573-4854
Publisher Springer Verlag
Peer Reviewed Peer Reviewed
Volume 16
Issue 4
Pages 429-437
APA6 Citation Aranberri, I., Binks, B. P., Clint, J. H., & Fletcher, P. D. I. (2009). Synthesis of macroporous silica from solid-stabilised emulsion templates. Journal of Porous Materials, 16(4), (429-437). doi:10.1007/s10934-008-9215-x. ISSN 1380-2224
DOI https://doi.org/10.1007/s10934-008-9215-x
Keywords Mechanical Engineering; General Materials Science; Mechanics of Materials
Publisher URL https://link.springer.com/article/10.1007%2Fs10934-008-9215-x
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