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Open AccessArticle

The Ohm Law as an Alternative for the Entropy Origin Nonlinearities in Conductivity of Dilute Colloidal Polyelectrolytes

LIONS, NIMBE, CEA, CNRS, Universitè Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France
ISSP, RAS, Chernogolovka, 142432 Moscow, Russia
CNR-SPIN, c/o DICII-Universitá di Roma Tor Vergata, Via del Politecnico, 1, 00133 Roma, Italy
Author to whom correspondence should be addressed.
Entropy 2020, 22(2), 225;
Received: 10 January 2020 / Revised: 10 February 2020 / Accepted: 13 February 2020 / Published: 17 February 2020
(This article belongs to the Special Issue Simulation with Entropy Thermodynamics)
We discuss the peculiarities of the Ohm law in dilute polyelectrolytes containing a relatively low concentration n of multiply charged colloidal particles. It is demonstrated that in these conditions, the effective conductivity of polyelectrolyte is the linear function of n . This happens due to the change of the electric field in the polyelectrolyte under the effect of colloidal particle polarization. The proposed theory explains the recent experimental findings and presents the alternative to mean spherical approximation which predicts the nonlinear I–V characteristics of dilute colloidal polyelectrolytes due to entropy changes. View Full-Text
Keywords: polyelectrolytes; Ohm law; colloids polyelectrolytes; Ohm law; colloids
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Chikina, I.; Shikin, V.; Varlamov, A. The Ohm Law as an Alternative for the Entropy Origin Nonlinearities in Conductivity of Dilute Colloidal Polyelectrolytes. Entropy 2020, 22, 225.

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