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arXiv · 2209.12073

Macroscopic forces in inhomogeneous polyelectrolyte solutions

Yury Budkov·Nikolai Kalikin
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Abstract

In this paper, we present a self-consistent field theory of macroscopic forces in spatially inhomogeneous flexible chain polyelectrolyte solutions. We derive an analytical expression for a stress tensor which consists of three terms: isotropic hydrostatic stress, electrostatic (Maxwell) stress, and stress rising from conformational entropy of polymer chains -- conformational stress. We apply our theory to the description of polyelectrolyte solutions confined in a conductive slit nanopore and observe anomalous behavior of disjoining pressure and electric differential capacitance.

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Yury Budkov, Nikolai Kalikin. 2022-09-24. Macroscopic forces in inhomogeneous polyelectrolyte solutions. https://doi.org/10.1103/physreve.107.024503

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