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High Internal Phase Emulsions under Shear. Co-Surfactancy and Shear Stability

Yaron, Peter; Scott, Andrew; Reynolds, Philip; Jitendrakumar, Mata; White, John

Description

Large changes in the rheology of high-internal phase aqueous-in-oil emulsions (HIPEs) using an oil-soluble polyisobutylene-based primary surfactant (PIBSA) are provoked by very small quantities of water-soluble polyamide-based cosurfactants (PAM with C12, C14, and C16 tails). The structural origin of this was studied using small-angle neutron scattering (SANS) from sheared emulsions, with simultaneous in situ rheology measurements. The PAM drastically lowers the droplet-oil interfacial tension...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
URI: http://hdl.handle.net/1885/51332
Source: Journal of Physical Chemistry B
DOI: 10.1021/jp2005919

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