TENSIOMETRIC PROPERTIES OF MIXTURES OF DICATIONIC IMIDAZOLIUM SURFACTANTS WITH PROTEIN POLYELECTROLYTES
Tensiometric properties (dynamic and equilibrium surface tension) of aqueous solutions of mixtures of dicationic imidazolium surfactants with short methylene bridge fragments and β-lactoglobulin or β-casein at the boundary with air were studied by the hanging drop method. It has been established that the formation of complexes between protein polyelectrolytes and dicationic surfactants leads to a change in the characteristics of the equilibrium values of surface tension and on the formation of surface layers at the phase boundary. The formation of complexes with oppositely charged components of the mixture in the bulk of the solution can be useful for practical applications.