Dielectric characteristics of polyvinyl alcohol films

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Abstract

Dielectric characteristics of polyvinyl alcohol films obtained from aqueous solutions of the polymer have been investigated. The results of low-frequency (25 Hz – 1 MHz) and high-frequency (9.8 GHz) measurements are presented. The influence of filtration of aqueous solution of polyvinyl alcohol on dielectric parameters of the studied samples was found. The IR spectra of both types of films are identical and correspond to the literature data.

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About the authors

G. V. Simbirtseva

Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences

Author for correspondence.
Email: sgvural@mail.ru
Russian Federation, Moscow

S. D. Babenko

Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences

Email: sgvural@mail.ru
Russian Federation, Moscow

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2. Fig. 1. IR spectra of films made from unfiltered (1) and filtered (2) aqueous solutions of polyvinyl alcohol: 1 - 1-nF film, 2 - 2-F film.

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3. Fig. 2. Effect of filtration of aqueous polyvinyl alcohol solution on low-frequency complex dielectric permittivities and conductivities (′ (a), ε′′ (b), tg(c), σHF (d)) of PVS 1-nF (1) and 2-F (2) films.

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