CP14

Eltekov A.Y., Eltekova N.A., Findenegg G.H.
Normal and inverse temperature dependence in the adsorption of surfactants at hydrophilic interface.

Germany / Германия

The adsorption and organization of nonionic surfactants (C₈E₄, C₁₀E₅, C₈G₁ and C₁₀G₂) in aqueous solution at porous silica SBA-15 have been studied by liquid chromatography at 25 and 45 °C. Pronounced S-shaped isotherms are found for studied surfactants. The experimental data fitted according to the adsorption model, which takes in to account monomers adsorption and micelle formation at the interface.