Hollow microspheres with binary porous membranes from solid-stabilised emulsion templates

Cayre, Olivier J. and Biggs, Simon (2009) Hollow microspheres with binary porous membranes from solid-stabilised emulsion templates. Journal of Materials Chemistry, 19 18: 2724-2728. doi:10.1039/b820842e


Author Cayre, Olivier J.
Biggs, Simon
Title Hollow microspheres with binary porous membranes from solid-stabilised emulsion templates
Journal name Journal of Materials Chemistry   Check publisher's open access policy
ISSN 0959-9428
1364-5501
Publication date 2009
Sub-type Article (original research)
DOI 10.1039/b820842e
Open Access Status Not Open Access
Volume 19
Issue 18
Start page 2724
End page 2728
Total pages 5
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Language eng
Abstract We report a simple one pot procedure for the preparation of hollow microspheres with a shell comprised of an inner polymeric porous membrane and an outer layer of colloidal particles. Solid-stabilised emulsions are used as templates for the precipitation of a high molecular weight polymer at the oil-water interface via internal phase separation of a volatile solvent. As the solvent is extracted from the droplets, the polymer forms a porous membrane on their surface and entraps the colloidal monolayer adsorbed at the interface. We demonstrate the versatility of this method by using several types of particle emulsifiers and by preparing hollow microspheres of different size, porosity and surface properties. We also investigate the use of gold nanoparticles in this process and successfully entrap a large number of nanoparticles on the surface of the polymeric membrane by modifying the surface of the nanoparticles in-situ.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Faculty of Engineering, Architecture and Information Technology Publications
 
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