Table of Contents
International Journal of Inorganic Chemistry
Volume 2011, Article ID 723020, 6 pages
Research Article

Effect of the Degree of Ionization on the Insertion of Polyvinylpyridinium Salts into Bentonite

1Department of Sciences, Faculty of Sciences and Technology, University of Bechar, 08000 Bechar, Algeria
2Department of Chemistry, Faculty of Sciences, University of Batna, 05000 Batna, Algeria

Received 1 October 2011; Accepted 5 December 2011

Academic Editor: Christopher Allen

Copyright © 2011 Mohamed Amine Zenasni et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The present work reports the effect of the degree of α ionization of poly(4-vinylpyridinium) salts (P4VPS) on the insertion of these polymer salts into bentonite. Nanocomposite materials made of a Na-montmorillonite mineral with poly(4-vinylpyridinium) salts (P4VPS) have been synthesised and characterised. The modified samples were studied by X-ray diffraction (XRD) and thermogravimetric analysis (TGA). The basic spacing of unmodified montmorillonite, determined by XRD, was measured to be 1.38 nm; it was found to increase after modification up to 1.50 nm. The insertion capacity of P4VPS into bentonite increased with the increasing degree of quaternisated nitrogen sites in the polymer.