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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/31463
Title: Facile method for preparation of anisotropic submicron magnetic Janus particles using miniemulsion
Authors: Chariya Kaewsaneha
Pramuan Tangboriboonrat
Duangporn Polpanich
Mohamed Eissa
Abdelhamid Elaissari
Laboratoire d'Automatique et de Génie des Procédés
Mahidol University
Thailand National Nanotechnology Center
National Research Centre
Keywords: Chemical Engineering;Materials Science
Issue Date: 1-Nov-2013
Citation: Journal of Colloid and Interface Science. Vol.409, (2013), 66-71
Abstract: Submicron hybrid magnetic, polystyrene (PS) based Janus particles containing magnetic nanoparticles (MNPs) on one side were successfully assembled using the miniemulsion/solvent evaporation method. Nanodroplets of styrene (St) monomer in the presence of PS and MNPs were generated in an aqueous continuous phase. The subsequent evaporation of St monomers resulted the precipitation of PS and MNPs into spherical nanoparticles. The effect of PS content, oil:water phase ratio, MNPs:PS ratio, and type and concentration of stabilizers on Janus morphology was investigated. A MNPs:PS weight ratio of 1:1 promoted the formation of Janus-like particles with MNPs located on one side due to the increased PS concentration during evaporation of the monomer solvent. Of the stabilizing agents tested (sodium dodecylsulfate (SDS), Triton X-405, polyvinyl alcohol, and Pluronic F-68), the presence of 1.0gL-1SDS and 20.0gL-1Pluronic F-68 was found to effectively stabilize hybrid particles with Janus morphology. © 2013 Elsevier Inc.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84883558530&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/31463
ISSN: 10957103
00219797
Appears in Collections:Scopus 2011-2015

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