Stratification of foam films made from polyelectrolyte solutions

Authors
Langevin, D
Citation
D. Langevin, Stratification of foam films made from polyelectrolyte solutions, EUR PHY J E, 5(1), 2001, pp. 81-85
Citations number
32
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
EUROPEAN PHYSICAL JOURNAL E
ISSN journal
12928941 → ACNP
Volume
5
Issue
1
Year of publication
2001
Pages
81 - 85
Database
ISI
SICI code
1292-8941(200105)5:1<81:SOFFMF>2.0.ZU;2-#
Abstract
Studies of thin liquid films, made from semidilute polyelectrolyte solution s, are presented. The disjoining pressure variation with film thickness exh ibits oscillations, corresponding to film stratification. The oscillations become sharper as the polymer concentration c increases, and disappear when salt is added. The period of the oscillations scales as c(-1/2). The obser ved stratification is related to the polymer network and the size of the st eps to the mesh size xi.