Features of structural formations in butadiene-nitrile rubber films under the action of a directed electric field

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Resumo

The influence of the direction of a constant electric field on the properties and structural features of thin films of nitrile rubber (NBR) formed on copper substrates from a solution in chloroform has been 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 to 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. IR spectroscopy methods confirmed the structuring and cyclization of BNKS molecules on the surface of the film formed on the cathode.

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Sobre autores

L. Shibryaeva

Emanuel Institute of Biochemical Physics, Russian Academy of Sciences; Russian Technological University

Email: komova_n@mirea.ru

Lomonosov Institute of Fine Chemical Technologies

Rússia, Moscow; Moscow

N. Komova

Russian Technological University

Autor responsável pela correspondência
Email: komova_n@mirea.ru

Lomonosov Institute of Fine Chemical Technologies

Rússia, Moscow

V. Chizhenok

Russian Technological University

Email: komova_n@mirea.ru

Lomonosov Institute of Fine Chemical Technologies

Rússia, Moscow

I. Boginskay

Federal State Budgetary Institution of Science Institute of Theoretical and Applied Electrodynamics of the Russian Academy of Sciences

Email: komova_n@mirea.ru
Rússia, Moscow

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2. Fig. 1. Temperature dependences of the relative resistivity of nitrile butadiene rubber films formed on a copper plate in the absence of an electric field (1), on the anode (2), and on the cathode (3).

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3. Fig. 2. Semi-logarithmic anamorphosis of the dependence of the relative resistivity on the inverse temperature for the BNKS film, formed in the absence of a field (1), on the anode (2), on the cathode (3).

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4. Fig. 3. Temperature dependence of the electrical capacity of film samples formed outside the electric field (1), on the anode (2), on the cathode (3).

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5. Fig. 4. Temperature dependence of the dielectric loss tangent of BNKS films formed on copper substrates: 1 - outside the electric field, 2 - on the anode, 3 - on the cathode.

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6. Fig. 5. DSC curves when heating samples at a rate of 10 deg/min, formed outside the field (1), at the anode (2), at the cathode (3).

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7. Fig. 6. Schematic representation of the formation of the BNKS film structure on the cathode.

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8. Rice. Fig. 7. Raman spectra of BNKS films, film formed outside the field (1), on the anode (2), on the cathode (3).

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