Abstract
The work is devoted to the fabrication and study of electret material based on cellulose diacetate polymer film with an intercalated active component, polar macromolecules Zn{(NH2)2CO}2Br2. The introduction of macromolecules into the film was carried out during its formation from solutions of various concentrations of cellulose diacetate and Zn{(NH2)2CO}2Br2 in tetrahydrofuran with ethyl alcohol under the action of a constant electric field of 2–4 kV cm–1. The temperature curves of the dielectric constant ε, the dielectric loss tangent tan δ, as well as the thermally stimulated depolarization currents j of the resulting films were determined. It was established that modification leads to the appearance of additional maxima in the ε(T), tan δ(T), and j(T) curves caused by the active component embedded in the film. Modification of a cellulose diacetate film causes an increase in the value of j and the surface charge density found from the j(T) curve by more than two orders of magnitude. The results obtained indicate the possibility of application of the method under consideration to fabricate electret films.
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Funding
The work was carried out within the framework of the state assignment of the Ministry of Science and Higher Education of the Russian Federation, project FSFZ-2023-0005; the equipment of the Center for Collective Use of RTU MIREA was used, which received support from the Ministry of Education and Science of the Russian Federation under the Agreement dated 09/01/2021 no. 075-15-2021-689.
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T.A. Ageeva, M.N. Davydova, and A.I. Koifman: synthesis of polymer films; A.I. Koifman: developing the method for fabricating the intercalated film materials; V.V. Fomichev: developing the design of film electret material; M.N. Davydova: conducting the synthesis and characterization of organometallic complexes; T.A. Ageeva: preparing the metal electrodes on films; M.I. Titov and A.A. Bush: carrying out electrophysical studies of the resulting films.
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Translated from Zhurnal Prikladnoi Khimii, No. 4, pp. 363–369, August, 2023 https://doi.org/10.31857/S0044461823040060
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Titov, M.I., Bush, A.A., Ageeva, T.A. et al. Properties of Polymer Films Based on Cellulose Diacetate with Intercalated Zn{(NH2)2Co}2Br2. Russ J Appl Chem 96, 434–440 (2023). https://doi.org/10.1134/S1070427223040067
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DOI: https://doi.org/10.1134/S1070427223040067