On the surface potentials of unimolecular films. Part IV.—The effect of the underlying solution and transition phenomena in the film

Abstract

In previous papers of this series (1) it was shown that the method of surface potentials could be developed to give quantitative measurements of the physico-chemical properties of unimolecular films at an air liquid interface. Several problems of fundamental importance arise when a closer investigation is made of the true meaning of the phrase “surface potential of a unimolecular film.”