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.
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Aswal, V.K., Vavrin, R., Kohlbrecher, J. et al. Pressure-induced structural transition of nonionic micelles. Pramana - J Phys 71, 1051–1055 (2008). https://doi.org/10.1007/s12043-008-0222-x
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DOI: https://doi.org/10.1007/s12043-008-0222-x