Influence of a Directed Electric Field on the Features of Structural Formations in Nitrile-Butadiene Rubber Films

The influence of the direction of a constant electric field on the properties and structural features of thin films of nitrile-butadiene rubber (NBR) formed on copper substrates from a solution in chloroform is studied. It is shown that the greatest effect in the modification of properties associated with structural transformations in the process of formation of elastomer films occurs on the negative electrode, the cathode, when the electric field lines are directed toward the electrode surface. The method of differential scanning calorimetry shows the structural differences between films formed outside and in the presence of electric fields. The films formed in the fields have different electrical characteristics from the films formed outside the field. The IR spectroscopy methods confirm the structuring and cyclization of NBR molecules on the surface of the film formed on the cathode.