Intra- and intermolecular organization of sulfopolystyrene ionomers in solutions: Neutron scattering study

V. T. Lebedev, A. B. Mel'nikov, L. V. Vinogradova, Gy Török

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Processes of self-organization of sulfonated PS with a low content of ionogenic groups in the acidic form (SO3H) in chloroform have been studied by cold neutron scattering. An analysis of spatial correlations of macromolecules shows that two factors (electrostatic interactions and hydrogen bonds between SO3H groups) are responsible for the conformational transformation of ionomer chains to hollow structures of the type of spherical micelles with dense packing of SO3H groups in the shell stabilized by hydrogen bonds. At a moderate content of SO3H groups (2.6 mol %), micellar particles of ionomers form chain clusters composed of three to five particles. In solutions of ionomers with a higher content of ionogenic groups (4.5 mol %), highly ordered three-dimensional structures appear in the form of fragments of a simple cubic lattice with a constant equal to the diameter of micelles.

Original languageEnglish
Pages (from-to)372-380
Number of pages9
JournalPolymer Science - Series A
Volume51
Issue number4
DOIs
Publication statusPublished - Apr 1 2009

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

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