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Particle-Stabilized Emulsions: A Bilayer or a Bridging Monolayer?

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  • We thank Wacker-Chemie, Burghausen, for financial support.

Abstract

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On suspension: While slightly hydrophobic silica particles can stabilize emulsions by forming dense, close-packed monolayers at the droplet surface that act as a steric barrier against coalescence, strongly repulsive particles can stabilize emulsions as a result of spontaneous particle accumulation in a dense monolayer bridging the emulsion droplets that are sparsely covered with particles (see microscopy images).

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