Intermolecular Forces Across An Interface

The different types of intermolecular forces that can act across an interface are reviewed. In the case of the dispersion force and the dipole-dipole force, quantitative calculations can be made, to predict the energy of adhesion and the interfacial free energy. The relationship between the “interaction parameter” method of Girifalco and Good and the “dispersion component of surface tension” method of Fowkes is discussed. Forces across interfaces due to hydrogen bonds, to ionic attraction, to metallic forces, and to covalent bonds are also discussed.