Conformations and solution properties of star-branched polyelectrolytes

O.V. Borisov, E.B. Zhulina, F.A.M. Leermakers, M. Ballauff, A.H.E. Muller

Research output: Chapter in Book/Report/Conference proceedingChapter

46 Citations (Scopus)

Abstract

Aqueous solutions of star-like polyelectrolytes (PEs) exhibit distinctive features that originate from the topological complexity of branched macromolecules. In a salt-free solution of branched PEs, mobile counterions preferentially localize in the intramolecular volume of branched macroions. Counterion localization manifests itself in a dramatic reduction of the osmotic coefficient in solutions of branched polyions as compared with those of linear PEs. The intramolecular osmotic pressure, created by entrapped counterions, imposes stretched conformations of branches and this leads to dramatic intramolecular conformational transitions upon variations in environmental conditions. In this chapter, we overview the theory of conformations and stimuli-induced conformational transitions in star-like PEs in aqueous solutions and compare these to the data from experiments and Monte Carlo and molecular dynamics simulations.
Original languageEnglish
Title of host publicationSelf organized nanostructures of amphiphilic block copolymers I
EditorsA.H.E. Müller
Place of PublicationBerlin
Pages1-55
Publication statusPublished - 2011

Publication series

NameAdvances in polymer science
PublisherSpringer
Number241

Keywords

  • block-copolymer micelles
  • consistent-field theory
  • poly(methacrylic acid) brushes
  • molecular-dynamics simulations
  • modified poly(ethylene oxide)
  • angle neutron-scattering
  • monte-carlo-simulation
  • aqueous-solutions
  • polymer brushes
  • ionic-strength

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  • Cite this

    Borisov, O. V., Zhulina, E. B., Leermakers, F. A. M., Ballauff, M., & Muller, A. H. E. (2011). Conformations and solution properties of star-branched polyelectrolytes. In A. H. E. Müller (Ed.), Self organized nanostructures of amphiphilic block copolymers I (pp. 1-55). (Advances in polymer science; No. 241)..