Abstract
Micelle formation in aqueous sodium hexadecyl sulfate solutions is studied by small-angle neutron scattering. Measurements are carried out at different concentrations (1.1, 2.2, 3.2, 5.4, 10.9 and 32.8 mM/dm3) and at different temperatures (40°, 50°, and 60°C). The monotonous evolution of interparticle correlation can be observed on the measured scattering patterns. At high concentrations (10.9 and 32.8 mM/dm3) scattering patterns are described by interacting ellipsoids, but at low concentrations by non-interacting ellipsoids. Computation of the distance distribution function proved the ellipsoidal shape at 10.9 and 32.8 mM/dm3, but showed an unexpectedly large particle dimension and elongation of the micelles at lower concentrations.
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Borbély, S., Cser, L., Vass, S. et al. Micelle formation in sodium hexadecyl sulfate surfactant solutions studied by small-angle neutron scattering. Colloid Polym Sci 271, 786–792 (1993). https://doi.org/10.1007/BF00660096
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DOI: https://doi.org/10.1007/BF00660096