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Emulsions Stabilized by Silica Rods via Arrested Demixing
Published in American Chemical Society
2015
Volume: 31
   
Issue: 24
Pages: 6649 - 6654
Abstract
A binary liquid-liquid mixture with a lower critical solution temperature (LCST) when heated above a critical temperature undergoes demixing. During the initial phase of demixing process, high-energy liquid-liquid interfaces are created before both liquids eventually phase separate. By incorporating well-characterized colloidal silica rods in a homogeneous one-phase liquid-liquid mixture of lutidine/water (L/W) before inducing phase separation, we show that colloidal rod stabilized Pickering emulsions can be obtained. We show that the droplet size of Pickering emulsions can be tuned by varying particle concentration, and the droplet size distribution follows the prediction of the limited coalescence model. © 2015 American Chemical Society.
About the journal
JournalData powered by TypesetLangmuir
PublisherData powered by TypesetAmerican Chemical Society
ISSN07437463
Open AccessNo
Concepts (13)
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    Drops
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    Mixtures
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    Phase separation
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    Silica
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    Critical temperatures
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    DEMIXING PROCESS
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    Droplet size distributions
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    LIMITED COALESCENCES
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    Liquid-liquid interfaces
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    Lower critical solution temperature
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    Particle concentrations
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    PICKERING EMULSIONS
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    Liquids