There are only a few papers dealing with the correlation Measurements of the surface tension of decylamine and perflubetween the surface free energy of surfactants resulting from oroheptane and interfacial tension of water-perfluoroheptane different intermolecular forces and their free energy of miwere carried out. Measurements of the contact angle were also cellization (9, 11, 12). It has recently become possible to made for water, glycerol, formamide, diiodomethane, bromoform, arrive at a quantitative expression for the total interactions and benzene on DACl and CsPFO layers formed on Teflon and between surfactant molecules in liquid media on the basis on DACl and CsPFO pellets, as well as of zeta potential for surfacof new developments in surface thermodynamic treatment tants adsorbed on latex. From the results obtained and the literaof both attractive interactions between largely apolar moieture data the surface free energy of DACl and CsPFO for both
ties and repulsive interaction between strongly polar moietails and heads parts of their molecules, and their free energy of interaction through water were determined. It was shown that the ties in polar media .
free energy of interaction between -CH 2 -groups through water,
To solve this expression the Lifshitz-van der Waals and determined from interfacial tension, is in agreement with that the Lewis acid-base components of the surfactant surface obtained from the relationship between logCMC and the number free energy and c potential should be determined.
of carbon atoms in the chain of molecules of surfactants having
Thus the purpose of our paper is to determine these magnithe same head. It was also shown that there is agreement between tudes for decylammonium chloride and cesium perfluoroocthe total free energy of interaction between molecules of surfactanoate using measurements of contact angles, surface and tants through water and their critical micelle concentration interfacial tension in some systems, and the zeta potential, (CMC).