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Colloid and Polymer Science
Published in: Colloid and Polymer Science 2/2022

12-01-2022 | Short Communication

Diffusiophoretic velocity of a spherical soft particle

Author: Hiroyuki Ohshima

Published in: Colloid and Polymer Science | Issue 2/2022

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Abstract

The general expression is derived for the diffusiophoretic velocity of a spherical soft particle (that is, a spherical hard particle consisting of the particle core covered with an ion-penetrable surface layer of polyelectrolytes) in an electrolyte concentration gradient. For a weakly charged soft particle, the obtained general expression for the diffusiophoretic velocity is shown to reproduce the results derived by Huang and Keh (J Phys Chem B (2012) 116: 7575–7589). A simple approximate analytic expression is obtained for the diffusiophoretic velocity applicable for the case where the particle core radius and the thickness of the polyelectrolyte layer are much larger than the Debye length and the Brinkman screening length.
previous article Effect of Fe3O4/CNC ratio on properties of olive oil-in-water Pickering emulsions

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Metadata
Title
Diffusiophoretic velocity of a spherical soft particle
Author
Hiroyuki Ohshima
Publication date
12-01-2022
Publisher
Springer Berlin Heidelberg
Published in
Colloid and Polymer Science / Issue 2/2022
Print ISSN: 0303-402X
Electronic ISSN: 1435-1536
DOI
https://doi.org/10.1007/s00396-021-04933-3

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