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Polymers 2014, 6(4), 1207-1231; doi:10.3390/polym6041207

Does Electrical Conductivity of Linear Polyelectrolytes in Aqueous Solutions Follow the Dynamic Scaling Laws? A Critical Review and a Summary of the Key Relations

Dipartimento di Fisica, University of Rome, Piazzale A. Moro 5, I-00185 Rome, Italy
Received: 14 February 2014 / Revised: 4 April 2014 / Accepted: 11 April 2014 / Published: 22 April 2014
(This article belongs to the Special Issue Polyelectrolytes 2014)
View Full-Text   |   Download PDF [660 KB, 25 April 2014; original version 22 April 2014]   |  

Abstract

In this review, we focus on the electrical conductivity of aqueous polyelectrolyte solutions in the light of the dynamic scaling laws, recently proposed by Dobrynin and Rubinstein, to take into account the polymer conformations in different concentration regimes, both in good and poor solvent conditions. This approach allows us to separate contributions due to polymer conformation from those due to the ionic character of the chain, and offers the possibility to extend the validity of the Manning conductivity model to dilute and semidilute regimes. The electrical conductivity in the light of the scaling approach compares reasonably well with the observed values for different polyelectrolytes in aqueous solutions, over an extended concentration range, from the dilute to the semidilute regime. View Full-Text
Keywords: polyelectrolytes; dynamic scaling laws; electrical conductivity polyelectrolytes; dynamic scaling laws; electrical conductivity
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Cametti, C. Does Electrical Conductivity of Linear Polyelectrolytes in Aqueous Solutions Follow the Dynamic Scaling Laws? A Critical Review and a Summary of the Key Relations. Polymers 2014, 6, 1207-1231.

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