Complexation of ionomers and surfactant molecules of the same charge in a nonpolar solvent

Kirill N. Bakeev, Sergey A. Chugunov, Iwao Teraoka, William J. Macknight, Alexander B. Zezin, Victor A. Kabanov

Research output: Contribution to journalArticle

Abstract

Complexation between sulfonated polystyrene ionomers and bis(2-ethylhexyl) sulfosuccinate sodium salt (aerosol OT, AOT) surfactant molecules in m-xylene was studied by ultracentrifugation, vapor pressure osmometry, viscometry, and dynamic light scattering. When the dilute ionomer solution is mixed with the AOT solution, complexation takes place for both the slightly aggregated state of AOT and reversed micelles of AOT containing water. In the presence of excess AOT molecules, some of the AOT are free from the ionomers, and there are well-defined limiting compositions for complexes of the ionomer and AOT and for those of the ionomer and AOT micelles. The limiting composition depends on the species of the salt or acid group of the ionomer and on the state of AOT before mixing. The composition was estimated to be 0.21-0.66 reversed AOT micelles per salt/acid group for the ionomer-AOT micelle complexes and 14-23 AOT molecules per salt/acid group for the ionomer-AOT complexes. AOT molecules were found to disrupt efficiently the cluster-forming contacts among salt/acid groups, each of them encapsulating a single salt/acid group. The AOT micelles, however, do not completely disrupt the intrachain aggregation.

Original languageEnglish (US)
Pages (from-to)3926-3932
Number of pages7
JournalMacromolecules
Volume27
Issue number14
StatePublished - Jul 4 1994

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Dioctyl Sulfosuccinic Acid
Ionomers
Complexation
Surface-Active Agents
Aerosols
Surface active agents
Molecules
Micelles
Salts
Acids
Chemical analysis

ASJC Scopus subject areas

  • Materials Chemistry

Cite this

Bakeev, K. N., Chugunov, S. A., Teraoka, I., Macknight, W. J., Zezin, A. B., & Kabanov, V. A. (1994). Complexation of ionomers and surfactant molecules of the same charge in a nonpolar solvent. Macromolecules, 27(14), 3926-3932.

Complexation of ionomers and surfactant molecules of the same charge in a nonpolar solvent. / Bakeev, Kirill N.; Chugunov, Sergey A.; Teraoka, Iwao; Macknight, William J.; Zezin, Alexander B.; Kabanov, Victor A.

In: Macromolecules, Vol. 27, No. 14, 04.07.1994, p. 3926-3932.

Research output: Contribution to journalArticle

Bakeev, KN, Chugunov, SA, Teraoka, I, Macknight, WJ, Zezin, AB & Kabanov, VA 1994, 'Complexation of ionomers and surfactant molecules of the same charge in a nonpolar solvent', Macromolecules, vol. 27, no. 14, pp. 3926-3932.
Bakeev KN, Chugunov SA, Teraoka I, Macknight WJ, Zezin AB, Kabanov VA. Complexation of ionomers and surfactant molecules of the same charge in a nonpolar solvent. Macromolecules. 1994 Jul 4;27(14):3926-3932.
Bakeev, Kirill N. ; Chugunov, Sergey A. ; Teraoka, Iwao ; Macknight, William J. ; Zezin, Alexander B. ; Kabanov, Victor A. / Complexation of ionomers and surfactant molecules of the same charge in a nonpolar solvent. In: Macromolecules. 1994 ; Vol. 27, No. 14. pp. 3926-3932.
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