The Formation of arachidic acid Langmuir monolayers on the NiCl2 solution

The article describes the features of the formation of arachidic acid Langmuir monolayers on a water or NiCl2 solution subphase surface. Monolayers structure was investigated by analyzing the compression isotherms and Brewster angle microscopy methods. Films on the solid substrate (glass plates) were investigated by atomic force microscopy method for morphology. Film structure was studied as a function of the concentration of salt in subphase and exposure time. It is shown that the structure of films obtained by using NiCl2 solution as subphase is not homogeneous and we can see some grains in thin films.