Structure of microparticles and nanoparticles in solid-stabilized emulsions

Sowmitri Tarimala, Chih yuan Wu, Renu Sharma, Lenore L. Dai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Emulsions of oil and water stabilized by adsorbed solid particles are known as solid-stabilized emulsions (often referred to as Pickering emulsions). A study on the self-assembly of colloidal-sized polystyrene particles and alkanethiol-capped silver nanopaticles in Pickering emulsions was carried out. The polystyrene microparticles aggregated and formed a monolayer with small patches with local hexagonal order at low interfacial concentrations. Polystyrene particles with different sizes and different wettability could simultaneously segregate to the emulsion interface and form mixtures on it. In contrast to microparticles that form monolayers, the dodecanethiol-capped silver nanoparticles of 1-5 nm formed randomly distributed multilayers at the liquid/liquid interface, with an interparticle distance varying from close contact to ∼ 25 nm. This is an abstract of a paper presented at the AIChE Annual Meeting and Fall Showcase (Cincinnati, OH 10/30/2005-11/4/2005).

Original languageEnglish (US)
Title of host publication05AIChE
Subtitle of host publication2005 AIChE Annual Meeting and Fall Showcase, Conference Proceedings
PublisherAmerican Institute of Chemical Engineers
ISBN (Print)0816909962, 9780816909964
StatePublished - Jan 1 2005
Externally publishedYes
Event05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States
Duration: Oct 30 2005Nov 4 2005

Publication series

NameAIChE Annual Meeting Conference Proceedings
Volume2005

Other

Other05AIChE: 2005 AIChE Annual Meeting and Fall Showcase
CountryUnited States
CityCincinnati, OH
Period10/30/0511/4/05

ASJC Scopus subject areas

  • Energy(all)

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