Neutron study of self-organization in solutions of ionomers based on sulfonated polystyrene

V. T. Lebedev, A. B. Mel'Nikov, L. V. Vinogradova, G. Török

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Processes of self-organization of ionomers based on sulfonated PS containing ionogenic groups in the salt form (SO3Na) in chloroform have been studied by small-angle neutron scattering. At a small content of ionogenic groups SO3Na (1.35 mol %), the conformation of PS chains changes from coil-like to globular due to electrostatic interactions between them. An increase in the share of ionogenic groups to 2.6 mol % brings about the assembly of ionomer chains into a hollow spherical structure with the solvent inside. In the shell of a micelle, polar groups are densely packed and shielded from the solvent by nonpolar fragments of adjoining chains. At a low content of ionogenic groups in ionomers, two-thirds of macromolecules in solution are not incorporated in any structures. With an increase in the content of polar groups to 2.6 mol %, almost all chains are organized to small clusters-the stable pairs of macromolecules.

Original languageEnglish
Pages (from-to)277-282
Number of pages6
JournalPolymer Science - Series A
Volume51
Issue number3
DOIs
Publication statusPublished - Mar 2009

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Ionomers
Polystyrenes
Neutrons
Macromolecules
Micelles
Chloroform
Chlorine compounds
Neutron scattering
Coulomb interactions
Conformations
Salts

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

Cite this

Neutron study of self-organization in solutions of ionomers based on sulfonated polystyrene. / Lebedev, V. T.; Mel'Nikov, A. B.; Vinogradova, L. V.; Török, G.

In: Polymer Science - Series A, Vol. 51, No. 3, 03.2009, p. 277-282.

Research output: Contribution to journalArticle

Lebedev, V. T. ; Mel'Nikov, A. B. ; Vinogradova, L. V. ; Török, G. / Neutron study of self-organization in solutions of ionomers based on sulfonated polystyrene. In: Polymer Science - Series A. 2009 ; Vol. 51, No. 3. pp. 277-282.
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