Theoretical models for individual surfactant solutions

The equation of state and adsorption isotherm for the Frumkin model (which becomes the Langmuir model for a = 0, cf Chapter 2) are [Pg.191]

The reorientation model for molecules which can exist in two states (conformational changes) in the adsorption layer, 1 and 2, respectively (for definiteness we assume co, CO2) involves the equation of state of the surface layer [Pg.191]

Here the total adsorption T and mean molar area co are defined by the relationships [Pg.191]

The model also involves the ratio of adsorptions in the two possible adsorption states of the molecule (the so-called generalised Joos adsorption equation) [Pg.192]

The model for aggregation in the adsorption layer with the arbitrary aggregation number n is described by the following equation of state and adsorption isotherm [Pg.192]

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