Abstract
The mechanism controlling rapid aging of surfaces of aqueous solutions is considered with reference to the variation of dynamic surface tension with time. The Ward--Tordai and Sutherland results for the diffusion-controlled mechanism are critically discussed and a new surface model is introduced which reduces to the Sutherland result as a special case. The diffusion-controlled mechanism is inadequate for aqueous solutions of mono-alcohols. Satifactory agreement between experiment and theory is obtained through introduction of first-order adsorption kinetics, but only for values of the adsorption rate constant which make the governing relation a complex-variable equation.
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