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20-04U

20-04U


By Velychko - Posted on 13 January 2021

UDC: 
538.9
PACS: 
51.30.+i, 64.70.Md, 05.70.Fh, 64.60.De, 64.60.F-

Phase behaviour of ionic solutions confined in a disordered porous media: Restricted primitive model in the explicit anisotropic solvent

M.V. Hvozd
T.V. Patsahan
O.V. Patsahan
M.F. Holovko

We propose a theory that takes into account the effect of a disordered porous medium on the liquid-liquid phase behavior of the ionic solution, which is modelled by the resticted primitive model (RPM) with explicit consideration of the neutral hard spherocylinder (HSC) solvent. This theoretical approach is based on a combination of the scale particle theory (SPT) and the associative mean-spherical approximation (AMSA). The liquid-liquid phase transition in such a system is investigated, where one phase is enriched with ions, and another one — with solvent particles. The isotropic-nematic phase transition is observed due to the orientational ordering of the HSC particles. The effects caused by the matrix confinement and the elongation of the solvent particles.

 

Year: 
2020
Pages: 
20
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