Structural evidence of charge renormalization in semi-dilute solutions of highly charged polyelectrolytes

Authors
Essafi, W Lafuma, F Williams, CE
Citation
W. Essafi et al., Structural evidence of charge renormalization in semi-dilute solutions of highly charged polyelectrolytes, EUR PHY J B, 9(2), 1999, pp. 261-266
Citations number
25
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
EUROPEAN PHYSICAL JOURNAL B
ISSN journal
14346028 → ACNP
Volume
9
Issue
2
Year of publication
1999
Pages
261 - 266
Database
ISI
SICI code
1434-6028(199905)9:2<261:SEOCRI>2.0.ZU;2-F
Abstract
We show experimentally that Manning counterion condensation also leads to a renormalization of the charge density at high concentrations of highly cha rged, flexible, hydrophilic polyelectrolytes. Investigations by small angle neutron and X-ray scattering of semi-dilute solutions of poly(acrylamide-c o-sodium-2-acrylamido-2-methylpropane sulfonate) at different charge densit ies above the condensation threshold, show that the scattering function is invariant with the charge density.