Van der Waals Emulsions: Emulsions Stabilized by Surface-Inactive, Hydrophilic Particles via van der Waals Attraction

Marina, P, Cheng, C, Sedev, R, Stocco, A, Binks, B and Wang, D 2018, 'Van der Waals Emulsions: Emulsions Stabilized by Surface-Inactive, Hydrophilic Particles via van der Waals Attraction', Angewandte Chemie - International Edition, vol. 57, no. 30, pp. 9510-9514.


Document type: Journal Article
Collection: Journal Articles

Title Van der Waals Emulsions: Emulsions Stabilized by Surface-Inactive, Hydrophilic Particles via van der Waals Attraction
Author(s) Marina, P
Cheng, C
Sedev, R
Stocco, A
Binks, B
Wang, D
Year 2018
Journal name Angewandte Chemie - International Edition
Volume number 57
Issue number 30
Start page 9510
End page 9514
Total pages 5
Publisher Wiley
Abstract Surface-inactive, highly hydrophilic particles are utilized to effectively and reversibly stabilize oil-in-water emulsions. This is a result of attractive van der Waals forces between particles and oil droplets in water, which are sufficient to trap the particles in close proximity to oil-water interfaces when repulsive forces between particles and oil droplets are suppressed. The emulsifying efficiency of the highly hydrophilic particles is determined by van der Waals attraction between particle monolayer shells and oil droplets enclosed therein and is inversely proportional to the particle size, while their stabilizing efficiency is determined by van der Waals attraction between single particles and oil droplets, which is proportional to the particle size. This differentiation in mechanism between emulsification and stabilization will significantly advance our knowledge of emulsions, thus enabling better control and design of emulsion-based technologies in practice.
Subject Physical Chemistry not elsewhere classified
Keyword(s) colloids
emulsions
interactions
interfaces
particles
DOI - identifier 10.1002/anie.201805410
Copyright notice © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN 1433-7851
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