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Volume 10
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10.3390/coatings10030286
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Article

Composite Ferroelectric Coatings Based on a Heat-Resistant Polybenzoxazole Polymer Matrix

by
Nikolay Mukhin
1,2,*,
Irina Sokolova
1,
Dmitry Chigirev
1,
Lyudmila Rudaja
3,
Galina Lebedeva
4,
Rene Kastro
5,
Maxim Bol’shakov
4,
Marc-Peter Schmidt
2,6 and
Soeren Hirsch
6
1
Saint Petersburg, Electrotechnical University “LETI”, 197376 Saint Petersburg, Russia
2
Otto von Guericke University of Magdeburg, Magdeburg, 39106, Germany
3
Saint Petersburg State Institute of Technology, Saint Petersburg, 190013, Russia
4
Institute of Macromolecular Compounds, Russian Academy of Sciences, Saint Petersburg, 199004, Russia
5
Herzen State Pedagogical University of Russia, Saint Petersburg, 191186, Russia
6
Department of Engineering, University of Applied Sciences Brandenburg, Magdeburger Str. 50, 14770 Brandenburg an der Havel, Germany
*
Author to whom correspondence should be addressed.
Coatings 2020, 10(3), 286; https://doi.org/10.3390/coatings10030286
Submission received: 1 February 2020 / Revised: 13 March 2020 / Accepted: 16 March 2020 / Published: 19 March 2020
(This article belongs to the Special Issue Ferroelectric Thin Films and Devices)
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Abstract

The polycondensation of 5,5-methylene bis(2-aminophenol) and the mixture of diamines 5,5-methylene bis(2-aminophenol) and 4,4-(hexafluoroisopropylidene)dianiline (molar ratio 0.8:0.2) with isophthaloyl dichloride was used to synthesize a new heat resistant binder of the composites for microelectronics: poly(o-hydroxyamide) (POA) and poly(amido-o-hydroxy amide) (POA-F). The thermal stability of synthesized polymer coatings, as well as based on them photosensitive compositions with a naphthoquinondiazide photosensitive component were studied in the temperature range from 100 to 500 °C. Ferroelectric composites with nanodispersed lead titanate zirconate powder filler were formed based on these polymer matrices. By manipulating the conditions of the polymer formation, we obtained matrices with different stiffnesses, which reflected on the properties of the composite. The electrophysical parameters of the synthesized polymer and ferroelectric composite coatings were measured in the frequency range from 0.1 Hz to 1.5 GHz and the temperature range from 0 to 300 °C. The frequency and temperature stability of the dielectric constant of ferroelectric composite coatings up to 10 MHz and 300 °C, respectively, are noted. The influence of the composition and structure of the polymer matrix and the grain/matrix interfaces on the thermal stability of the dielectric parameters of composite films is estimated. The shift of the phase transition region toward higher temperatures in the composite structure, as well as the sufficient rigidity of the poly(benzoxazole) matrix, provide high temperature and frequency stability of the dielectric constant of the studied composites.
Keywords: lead zirconate titanate; poly(o-hydroxy amide); 4,4-(hexafluoroisopropylidene) dianiline; 5,5-methylene bis(2-aminophenol); poly(o-hydroxyamide); composite ferroelectric coatings; thermal stability of dielectric properties lead zirconate titanate; poly(o-hydroxy amide); 4,4-(hexafluoroisopropylidene) dianiline; 5,5-methylene bis(2-aminophenol); poly(o-hydroxyamide); composite ferroelectric coatings; thermal stability of dielectric properties

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MDPI and ACS Style

Mukhin, N.; Sokolova, I.; Chigirev, D.; Rudaja, L.; Lebedeva, G.; Kastro, R.; Bol’shakov, M.; Schmidt, M.-P.; Hirsch, S. Composite Ferroelectric Coatings Based on a Heat-Resistant Polybenzoxazole Polymer Matrix. Coatings 2020, 10, 286. https://doi.org/10.3390/coatings10030286

AMA Style

Mukhin N, Sokolova I, Chigirev D, Rudaja L, Lebedeva G, Kastro R, Bol’shakov M, Schmidt M-P, Hirsch S. Composite Ferroelectric Coatings Based on a Heat-Resistant Polybenzoxazole Polymer Matrix. Coatings. 2020; 10(3):286. https://doi.org/10.3390/coatings10030286

Chicago/Turabian Style

Mukhin, Nikolay, Irina Sokolova, Dmitry Chigirev, Lyudmila Rudaja, Galina Lebedeva, Rene Kastro, Maxim Bol’shakov, Marc-Peter Schmidt, and Soeren Hirsch. 2020. "Composite Ferroelectric Coatings Based on a Heat-Resistant Polybenzoxazole Polymer Matrix" Coatings 10, no. 3: 286. https://doi.org/10.3390/coatings10030286

APA Style

Mukhin, N., Sokolova, I., Chigirev, D., Rudaja, L., Lebedeva, G., Kastro, R., Bol’shakov, M., Schmidt, M.-P., & Hirsch, S. (2020). Composite Ferroelectric Coatings Based on a Heat-Resistant Polybenzoxazole Polymer Matrix. Coatings, 10(3), 286. https://doi.org/10.3390/coatings10030286

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