Adsorption at the liquid/liquid interface in mixed systems with hydrophobic extractants and modifiers

Staszak, Katarzyna; Prochaska, Krystyna

doi:10.1016/j.jcis.2005.07.038

Cited by 15 publications

(1 citation statement)

References 22 publications

(28 reference statements)

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“…Similar relations between the values of diffusion coefficient and the bulk surfactant concentration have also been observed by other authors in studies of other surfactants in hydrocarbon–water systems [22–26] and air–water once [27–29]. The lower values of diffusion coefficients for higher surfactant concentrations could be explained by increasing concentration of aggregates in more concentrated solutions because of the association process [30].…”

Section: Resultssupporting

confidence: 81%

Synthesis and Interfacial Activity of Novel Heterogemini Sulfobetaines in Aqueous Solution

Kwaśniewska

Staszak

Wieczorek

et al. 2014

J Surfact & Detergents

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Three new heterogemini sulfobetaines and their chloride salts were synthesised. The interfacial activities of the obtained chlorides in aqueous solution were studied by equilibrium and dynamic surface tension measurements. The critical micelle concentration, surface excess concentration, minimum area per surfactant molecule and standard Gibbs energy of adsorption as well as micelle lifetime and diffusion coefficient were determined. The adsorption properties and micelle lifetime of these compounds significantly depend on the length of alkyl chain. The critical micelle concentration decreases with increasing chain length of the compounds considered. The values of the diffusion coefficient of N-alkyl-N-methyl-N-(3-sulfopropyl)-6-(N-alkyl-N-methylamino)hexylammonium chloride tend to decrease as the concentration is increased.

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