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Microscopic theory of solvent-mediated long-range forces: influence of wetting
journal contribution
posted on 2014-10-07, 12:44 authored by Andrew ArcherAndrew Archer, Robert Evans, Roland RothWe show that a general density functional approach for calculating the force between two big particles immersed in a solvent of smaller ones can describe systems that exhibit fluid-fluid phase separation: the theory captures effects of strong adsorption (wetting) and of critical fluctuations in the solvent. We illustrate the approach for the Gaussian core model, a simple model of a polymer mixture in solution and find extremely attractive, long-ranged solvent-mediated potentials between the big particles for state points lying close to the binodal, on the side where the solvent is poor in the species which is favoured by the big particles.
Funding
AJA was supported by an EPSRC studentship.
History
School
- Science
Department
- Mathematical Sciences
Published in
Europhysics LettersVolume
59Issue
4Pages
526 - 532Citation
ARCHER, A.J., EVANS, R. and ROTH, R., 2002. Microscopic theory of solvent-mediated long-range forces: influence of wetting. Europhysics Letters, 59 (4), pp. 526 - 532Publisher
IOP Press / © EDP SciencesVersion
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2002Notes
This article was published in the journal Europhysics Letter [IOP Press / © EDP Sciences]. The definitive version is available at: http://dx.doi.org/10.1209/epl/i2002-00137-2ISSN
0295-5075Publisher version
Language
- en