Properties of Polymer Films Based on Cellulose Diacetate with Intercalated Zn{(NH2)2Co}2Br2
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{(NH 2 ) 2 CO} 2 Br 2 . The introduction of macromolecules into the film was carried out during its formation from solutions o...
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| Published in: | Russian journal of applied chemistry Vol. 96; no. 4; pp. 434 - 440 |
|---|---|
| Main Authors: | , , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Moscow
Pleiades Publishing
01-04-2023
Springer Nature B.V |
| Subjects: | |
| Online Access: | Get full text |
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| Summary: | 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{(NH
2
)
2
CO}
2
Br
2
. The introduction of macromolecules into the film was carried out during its formation from solutions of various concentrations of cellulose diacetate and Zn{(NH
2
)
2
CO}
2
Br
2
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. |
|---|---|
| ISSN: | 1070-4272 1608-3296 |
| DOI: | 10.1134/S1070427223040067 |