Micelle formation in aqueous solutions of dodecylbenzene sulfonic acid studied by small-angle neutron scattering

V. I. Petrenko, M. V. Avdeev, V. M. Garamus, L. A. Bulavin, V. L. Aksenov, L. Rosta

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Structure and interaction parameters of micelles in solutions of dodecylbenzene sulfonic acid (DBSA) in deuterated water are studied by small-angle neutron scattering. The dependences of micellar aggregation number, fractional charge, charge per micelle and surface potential on surfactant concentration are analyzed. A typical increase in the micelle size with the growth in the acid content is found, which can be related to the transition from spherical to rod-like micelles. The obtained data are used for estimating surfactant micelle concentration in water-based ferrofluids stabilized with DBSA.

Original languageEnglish
Pages (from-to)160-164
Number of pages5
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume369
Issue number1-3
DOIs
Publication statusPublished - Oct 2010

Keywords

  • Dodecylbenzene sulfonic acid
  • Micelle formation
  • Polar ferrofluids
  • Small-angle neutron scattering

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

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