Heat Resistance and Electrophysical Characteristics of Polyheteroarylenes and Ferroelectric–Polymer Film Composites Based on Them
| Autor: | A. Yu. Marfichev, Irina Sokolova, M. N. Bol’shakov, D. A. Chigirev, Liudmila I. Rudaya, G. K. Lebedeva, Yu. V. Shagaiko |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Benzotriazole General Chemical Engineering Composite number 02 engineering and technology General Chemistry Polymer Benzoxazole 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Ferroelectricity 0104 chemical sciences chemistry.chemical_compound chemistry visual_art Amide visual_art.visual_art_medium Dielectric loss Ceramic Composite material 0210 nano-technology |
| Zdroj: | Russian Journal of Applied Chemistry. 93:188-196 |
| ISSN: | 1608-3296 1070-4272 |
| Popis: | Structurally related poly(amido-o-hydroxy amides) derived from 5,5-methylenebis(2-aminophenol) with tetramethylsiloxane and heteroaromatic (benzoxazole and benzotriazole) fragments incorporated in the second amine component or formed by polyheterocyclization of the corresponding prepolymers were prepared. The effect of modifying fragments introduced into the base poly(o-hydroxy amide) on the heat resistance of powders and films and of films of photosensitive compounds based on the synthesized polymers with the naphthoquinone diazide component was analyzed. The electrophysical parameters of the polymer films and film composites with a nanodispersed ferroelectric filler, (PZT: ceramic powder with the composition Pb0.81Sr0.04Na0.075Bi0.075(Zr0.58 Ti0.42)O3, Russian brand PZT-1), prepared on the basis of modified polymer binders, were determined. Introduction of 20 mol % sulfur-containing fragments into the polymer binder ensures a 50–65˚C increase in the heat resistance for all types of films without increasing the level of the dielectric loss for the composite coatings. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink