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Polypyrrole/Schiff Base Composite as Electromagnetic Absorbing Material with High and Tunable Absorption Performance

In recent years, Schiff base-related conjugated systems have received extensive attention, but little research has been done in the field of electromagnetic materials. In this work, an organic conjugated system based on polypyrrole/hydrazone Schiff base (PPy/HSB) composites was constructed via a Sch...

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Autores principales: Huang, Ji, Gu, Huiling, Li, Na, Yang, Hua, Chen, Gang, Zhang, Lizhu, Dong, Chengjun, Guan, Hongtao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9573551/
https://www.ncbi.nlm.nih.gov/pubmed/36234693
http://dx.doi.org/10.3390/molecules27196160
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author Huang, Ji
Gu, Huiling
Li, Na
Yang, Hua
Chen, Gang
Zhang, Lizhu
Dong, Chengjun
Guan, Hongtao
author_facet Huang, Ji
Gu, Huiling
Li, Na
Yang, Hua
Chen, Gang
Zhang, Lizhu
Dong, Chengjun
Guan, Hongtao
author_sort Huang, Ji
collection PubMed
description In recent years, Schiff base-related conjugated systems have received extensive attention, but little research has been done in the field of electromagnetic materials. In this work, an organic conjugated system based on polypyrrole/hydrazone Schiff base (PPy/HSB) composites was constructed via a Schiff base synthetic route and their electromagnetic behavior was investigated. The electromagnetic response of PPy/HSB complexes demonstrates fine electromagnetic absorption performance. When the filler loading is 30 wt% in a paraffin matrix, an absorption peak of −43.1 dB was achieved and its effective absorption bandwidth (EAB) was located in the range of 10.88−18.0 GHz. The electromagnetic response behavior of PPy/HSB complexes is explained by models involving electronic structure, multi-polarization and conductive network. The mechanisms of PPy/HSB complexes formation and HSB crystallization are also discussed through the compatibility of PPy/HSB and the structure of HSB. Moreover, the morphology transformation of HSB in the PPy/HSB systems has been studied. This study opens the exploration of organic–dielectric conjugated systems in the field of electromagnetic materials, and significantly broadens the application range of organic–dielectric–dielectric composites.
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spelling pubmed-95735512022-10-17 Polypyrrole/Schiff Base Composite as Electromagnetic Absorbing Material with High and Tunable Absorption Performance Huang, Ji Gu, Huiling Li, Na Yang, Hua Chen, Gang Zhang, Lizhu Dong, Chengjun Guan, Hongtao Molecules Article In recent years, Schiff base-related conjugated systems have received extensive attention, but little research has been done in the field of electromagnetic materials. In this work, an organic conjugated system based on polypyrrole/hydrazone Schiff base (PPy/HSB) composites was constructed via a Schiff base synthetic route and their electromagnetic behavior was investigated. The electromagnetic response of PPy/HSB complexes demonstrates fine electromagnetic absorption performance. When the filler loading is 30 wt% in a paraffin matrix, an absorption peak of −43.1 dB was achieved and its effective absorption bandwidth (EAB) was located in the range of 10.88−18.0 GHz. The electromagnetic response behavior of PPy/HSB complexes is explained by models involving electronic structure, multi-polarization and conductive network. The mechanisms of PPy/HSB complexes formation and HSB crystallization are also discussed through the compatibility of PPy/HSB and the structure of HSB. Moreover, the morphology transformation of HSB in the PPy/HSB systems has been studied. This study opens the exploration of organic–dielectric conjugated systems in the field of electromagnetic materials, and significantly broadens the application range of organic–dielectric–dielectric composites. MDPI 2022-09-20 /pmc/articles/PMC9573551/ /pubmed/36234693 http://dx.doi.org/10.3390/molecules27196160 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Huang, Ji
Gu, Huiling
Li, Na
Yang, Hua
Chen, Gang
Zhang, Lizhu
Dong, Chengjun
Guan, Hongtao
Polypyrrole/Schiff Base Composite as Electromagnetic Absorbing Material with High and Tunable Absorption Performance
title Polypyrrole/Schiff Base Composite as Electromagnetic Absorbing Material with High and Tunable Absorption Performance
title_full Polypyrrole/Schiff Base Composite as Electromagnetic Absorbing Material with High and Tunable Absorption Performance
title_fullStr Polypyrrole/Schiff Base Composite as Electromagnetic Absorbing Material with High and Tunable Absorption Performance
title_full_unstemmed Polypyrrole/Schiff Base Composite as Electromagnetic Absorbing Material with High and Tunable Absorption Performance
title_short Polypyrrole/Schiff Base Composite as Electromagnetic Absorbing Material with High and Tunable Absorption Performance
title_sort polypyrrole/schiff base composite as electromagnetic absorbing material with high and tunable absorption performance
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9573551/
https://www.ncbi.nlm.nih.gov/pubmed/36234693
http://dx.doi.org/10.3390/molecules27196160
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