Interacting rigid polyelectrolytes - Archive du Journal de Physique Access content directly
Journal Articles Journal de Physique II Year : 1994

Interacting rigid polyelectrolytes

Jean-Louis Barrat
Jean-François Joanny

Abstract

A new description of semidilute solutions of rigid polyelectrolyte chains is proposed. The description is based on analytical results obtained for a simple two-dimensional model. These results are then transposed to the physically relevant case of interacting chains in three dimensions. Different behaviours are obtained for salt-free solutions and solutions with added salt. In the latter, the persistence length of a chain is predicted to be only weakly affected by interchain interactions, as postulated by Odijk. In salt free solutions, on the contrary, the persistence length should scale as the interchain distance, which in this case is also the screening length. This behaviour resembles the one predicted earlier by Witten and Pincus. The crossover between these two different regimes, however, is expected to be very sharp, in contrast with their prediction.
Fichier principal
Vignette du fichier
ajp-jp2v4p1089.pdf (905.21 Ko) Télécharger le fichier
Origin : Explicit agreement for this submission

Dates and versions

jpa-00248030 , version 1 (04-02-2008)

Identifiers

Cite

Jean-Louis Barrat, Jean-François Joanny. Interacting rigid polyelectrolytes. Journal de Physique II, 1994, 4 (7), pp.1089-1102. ⟨10.1051/jp2:1994188⟩. ⟨jpa-00248030⟩

Collections

AJP
28 View
112 Download

Altmetric

Share

Gmail Facebook X LinkedIn More