Cargando…
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...
Autores principales: | , , , , , , , |
---|---|
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 |
_version_ | 1784810900457259008 |
---|---|
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. |
format | Online Article Text |
id | pubmed-9573551 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT huangji polypyrroleschiffbasecompositeaselectromagneticabsorbingmaterialwithhighandtunableabsorptionperformance AT guhuiling polypyrroleschiffbasecompositeaselectromagneticabsorbingmaterialwithhighandtunableabsorptionperformance AT lina polypyrroleschiffbasecompositeaselectromagneticabsorbingmaterialwithhighandtunableabsorptionperformance AT yanghua polypyrroleschiffbasecompositeaselectromagneticabsorbingmaterialwithhighandtunableabsorptionperformance AT chengang polypyrroleschiffbasecompositeaselectromagneticabsorbingmaterialwithhighandtunableabsorptionperformance AT zhanglizhu polypyrroleschiffbasecompositeaselectromagneticabsorbingmaterialwithhighandtunableabsorptionperformance AT dongchengjun polypyrroleschiffbasecompositeaselectromagneticabsorbingmaterialwithhighandtunableabsorptionperformance AT guanhongtao polypyrroleschiffbasecompositeaselectromagneticabsorbingmaterialwithhighandtunableabsorptionperformance |