Structural and viscoelastic properties of lamellar systems formed from concentrated nonionic surfactant solutions

L. Halász, Z. Németh, J. P.T. Horányi, A. Bóta

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Abstract

The structure and rheological properties of a concentrated lamellar liquid-crystalline nonionic surfactant system were investigated. The morphology of the samples was analyzed by polarization light microscopy, electron microscopy and small-angle X-ray scattering measurements. The rheological properties, the frequency-dependent storage and loss modulus, the creep compliance and the steady-state viscosity function were measured at different temperatures with systems containing surfactant in different concentrations. The rheological properties were described by the modified slip-plane theory. Discrepancies between the fitted curves of the model and the experimental curves were estimated as the result of the Frank stress.

Original languageEnglish
Pages (from-to)159-166
Number of pages8
JournalProgress in Colloid and Polymer Science
Volume117
Publication statusPublished - Dec 1 2001

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Keywords

  • Lamellar
  • Rehology
  • Structure surfactant self-assembly

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Polymers and Plastics
  • Colloid and Surface Chemistry
  • Materials Chemistry

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