Neutron reflection has been used to measure the adsorption of gelatin, in combination with the surfactants sodium dodecyl sulfate and hexadecyltrimethylammonium bromide, to polystyrene. For gelatin/ surfactant systems, a mixed adsorbed layer is observed with a similar diffuse density profile to gelatin alone. The relative proportion of each component at the interface depends on the sequence of adsorption. Adsorption of a mixture to a fresh surface produces a layer with a high proportion of surfactant. Addition of gelatin or a gelatin/ surfactant mixture to an existing surfactant layer displaces surfactant from the interface. Adsorbed gelatin is not removed on addition of a surfactant solution; some surfactant penetrates, but the layer remains rich in gelatin. © Springer-Verlag 1999.
CITATION STYLE
Turner, S. F., Clarke, S. M., Rennie, A. R., Thirtle, P. N., Li, Z. X., Thomas, R. K., … Penfold, J. (1999). Adsorption of gelatin in combination with sodium dodecyl sulfate or hexadecyltrimethylammonium bromide to a polystyrene/water interface. Progress in Colloid and Polymer Science, 112, 206–209. https://doi.org/10.1007/3-540-48953-3_41
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