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A small angle neutron scattering study on the mixtures of pluronic L121 and anionic surfactant AOT

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Abstract

Small angle neutron scattering (SANS) experiments have been carried out on the micellar solutions containing mixtures of a hydrophobic triblock copolymer (L121, EO5PO68EO5) and a hydrophobic anionic surfactant (AOT, sodium bis(2-ethylhexyl)sulphosuccinate) in water with varying ratio (R) of AOT to L121 for R = 0.15, 0.2, 0.3, 0.5 and 0.6. It is known that either L121 or AOT alone forms vesicles in water, but in the mixture with appropriate ratio of the two components a thermodynamically stable, isotropic solution of apparently small micelle-like aggregates is formed. We find that these micelles are prolate ellipsoidal.

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Authors and Affiliations

  1. UGC-DAE Consortium for Scientific Research, Mumbai, 400 085, India

    G. Ghosh

  2. Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India

    V. K. Aswal

  3. Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama, 240-8501, Japan

    D. Varade

Authors
  1. G. Ghosh
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  2. V. K. Aswal
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  3. D. Varade
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Correspondence to G. Ghosh.

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Ghosh, G., Aswal, V.K. & Varade, D. A small angle neutron scattering study on the mixtures of pluronic L121 and anionic surfactant AOT. Pramana - J Phys 71, 1063–1067 (2008). https://doi.org/10.1007/s12043-008-0224-8

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  • DOI: https://doi.org/10.1007/s12043-008-0224-8

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