Counterion localization in solutions of starlike polyelectrolytes and colloidal polyelectrolyte brushes: A self-consistent theory

F.A.M. Leermakers, M. Ballauff, O.V. Borisov

    Research output: Contribution to journalArticleAcademicpeer-review

    22 Citations (Scopus)

    Abstract

    A quantitative analysis of the distribution of counterions in salt-free solutions of colloidal polyelectrolyte brushes and starlike polyelectrolytes is performed on the level of the Poisson¿Boltzmann approximation. Exact numerical solutions are obtained for starlike polyelectrolyte molecules composed of f = 20,¿.¿.¿., 50 arms with a fixed fractional charge ¿ per segment by applying the self-consistent field method of Scheutjens and Fleer (SF-SCF). The Wigner¿Seitz cell dimension defines the concentration of polyelectrolyte stars in the system. The numerical results are compared to predictions of an analytical mean field theory and related to experimental observations on the osmotic pressure in solutions of starlike polyelectrolytes and colloidal polyelectrolyte brushes.
    Original languageEnglish
    Pages (from-to)10026-10034
    JournalLangmuir
    Volume24
    Issue number18
    DOIs
    Publication statusPublished - 2008

    Keywords

    • branched polyelectrolytes
    • polymer brushes
    • simulations
    • micelles
    • model

    Fingerprint Dive into the research topics of 'Counterion localization in solutions of starlike polyelectrolytes and colloidal polyelectrolyte brushes: A self-consistent theory'. Together they form a unique fingerprint.

  • Cite this