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      https://www.ias.ac.in/article/fulltext/pram/071/05/1051-1055

    • Keywords

       

      Micelles; dynamic light scattering, small angle neutron scattering.

    • Abstract

       

      We report dynamic light scattering and small angle neutron scattering studies of the pressure-induced structural transition of nonionic micelles of surfactant polyoxyethylene 10 lauryl ether (C12E10) in the pressure range 0 to 2000 bar. Measurements have been performed on 1 wt% C12E10 in aqueous solution with and without the addition of KF. Micelles undergo sphere to lamellar structural transitions as the pressure is increased. On addition of KF, rod-like micelles exist at ambient pressure, which results in rod-like to lamellar structural transition at a much lower pressure in the presence of KF. Micellar structural transitions have been observed to be reversible.

    • Author Affiliations

       

      V K Aswal1 R Vavrin2 J Kohlbrecher2 A G Wagh1

      1. Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
      2. Laboratory for Neutron Scattering, ETH Zurich & Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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