On the Ohm law in dilute colloidal polyelectrolytes

I. Chikina (1) , V. Shikin (2) , Andrey Varlamov (3)

1 LIONS - Laboratoire Interdisciplinaire sur l'Organisation Nanométrique et Supramoléculaire
2 Russian Academy of Sciences - Chernogolovka
3 SPIN-CNR [Rome]

We discuss the peculiarities of the Ohm law in dilute polyelectrolytes containing a relatively low concentration of the multiply-charged colloidal particles. It is demonstrated that in this conditions, the effective conductivity of polyelectrolyte is the linear function of colloidal particles concentration. This happens due to the change of electric field in the polyelectrolyte under the effect of colloidal particle polarization. Such mechanism gives grounds to propose the alternative scenario for the phenomenon observed experimentally.

Domaines: Chimie théorique et/ou physique

I. Chikina, V. Shikin, Andrey Varlamov. On the Ohm law in dilute colloidal polyelectrolytes. 2020. ⟨cea-02436157⟩