ABSTRACT
The modeling of dynamic interfacial processes requires a knowledge of the equi librium state of the adsorption layer. Although there are many adsorption iso therms available to describe the equilibrium behavior of adsorbed surfactant lay ers at liquid interfaces, in almost all cases the Langmuir isotherm is used as a standard. However, it had been shown in [1] that the isotherm had a significant effect on the quantitative course of the adsorption kinetics. For example, using the Langmuir isotherm, higher initial values for the rate of surface tension changes are obtained as compared to the Frumkin isotherm [2]. This makes it important to consider an exact isotherm for a surfactant under study in order to understand quantitatively its adsorption kinetics and exchange of matter.
