A small angle neutron scattering study on the mixtures of pluronic L121 and anionic surfactant AOT |
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Authors: | G. Ghosh V. K. Aswal D. Varade |
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Affiliation: | (1) UGC-DAE Consortium for Scientific Research, Mumbai, 400 085, India;(2) Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India;(3) Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama 240-8501, Japan |
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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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Keywords: | Micelles nanoclusters small angle neutron scattering |
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