Properties of mixed adsorption films of aniline–p-fluoroaniline at the water/air interface

The paper presents the properties of mixed adsorption films of aniline–p-fluoroaniline at the aqueous solutions/air interface. These properties were studied by surface tension and surface potential measurements carried out as a function of total molarity of solution of both components at a constant mole fraction of p-fluoroaniline. The mixed adsorbed film composition, the interaction between adsorbed molecules, the effective dipole moment of adsorbed molecules and the angles of surface orientation of molecules were determined.