Low-Angle Light Scattering Study of Polyelectrolyte Behavior of Ionomers in Polar Solvent

Masanori Hara, Jhi Li Wu

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38 Scopus citations

Abstract

Ionomers are a new class of ion-containing polymers which have ions in concentrations up to 10-15%, randomly distributed in nonionic backbone chains, and have been widely studied in the solid state.1-3 Recently, the solution properties of ionomers have begun to be studied4-10because of their unique properties: (1) in nonpolar solvents, ionomers show aggregation behavior due to dipole-dipole attractions between ion pairs; (2) in polar solvents, they show polyelectrolyte behavior due to the repulsion between fixed ions in polymer chains. Even ionomers with only a few percent of ions show characteristic polyelectrolyte behavior. Lundberg et al.5 studied this polyelectrolyte behavior using viscosity measurements; the reduced viscosity increased remarkably with decreasing polymer concentration. MacKnight et al.10studied the polyelectrolyte behavior using neutron scattering; the scattering curves exhibit a broad single maximum. Here, we study the polyelectrolyte behavior of an ionomer (lightly sulfonated polystyrene) in a polar solvent (DMF) using light scattering measurements.

Original languageEnglish (US)
Pages (from-to)2887-2888
Number of pages2
JournalMacromolecules
Volume19
Issue number11
DOIs
StatePublished - 1986

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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