About the correlation between the mobility of a polyion and that of its counterions

JOURNAL OF ADVANCES IN CHEMISTRY

View Publication Info
 
 
Field Value
 
Title About the correlation between the mobility of a polyion and that of its counterions
 
Creator GHAZOUANI, Anis.
BOUGHAMMOURA, Sondes.
M'HALLA, Jalel
 
Subject Physical chemistry.
Conductibility; Ionic condensation; Polystyrene sulphonate; Ionic friction; Dielectric friction; Hydrophobic.
 
Description In this paper, we propose a new approach in order to interpret the variation of the conductibility of the PSS polyion with the nature and the concentration of the alkaline counter-ions Li+, Na+ and K+, and the hydrophobic cations Et4N+ and Bu4N+. This approach is based on a recent model in which the stretched polyion is represented by a chain of successive charged spheres, partially condensed by the counter-ions. We have found that the moderate variation of the hydrodynamic friction on the polyion with the size RM of condensed counter-ions, cannot completely explain the important decrease (of about 35% from K+ to Bu4N+) of the conductibility (lPSS,M ) of the PSS polyion with the nature of the counter-ions. Consequently, we have proposed a supplementary explanation by taking into account of the translational dielectric friction on the moving polyion. Formal analysis of this friction shows that it is very sensitive to the local structure of water surrounding the polyions. As this local structure depends in its turn, on the nature of the condensed counter-ions; we suggested that this specific sensitivity could explain the high dependence of the mobility of the polyion with the nature of its counter-ions.    
 
Publisher CIRWORLD
 
Date 2014-05-01
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
A research paper on empirical and theoretical interpretations of experimental conductibility of some polyelectrolytes.
 
Format application/pdf
 
Identifier http://cirworld.com/index.php/jac/article/view/894
 
Source JOURNAL OF ADVANCES IN CHEMISTRY; Vol 10 No 4; 2558-2574
2321-807X
 
Language eng
 
Relation http://cirworld.com/index.php/jac/article/view/894/874
 
Rights Copyright (c) 2016 JOURNAL OF ADVANCES IN CHEMISTRY
 

Contact Us

The PKP Index is an initiative of the Public Knowledge Project.

For PKP Publishing Services please use the PKP|PS contact form.

For support with PKP software we encourage users to consult our wiki for documentation and search our support forums.

For any other correspondence feel free to contact us using the PKP contact form.

Find Us

Twitter

Copyright © 2015-2018 Simon Fraser University Library