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Enhanced High-Temperature Dielectric Properties of Poly(aryl ether sulfone)/BaTiO3 Nanocomposites via Constructing Chemical Crosslinked Networks.

Authors
  • Liu, Jie1
  • Li, Xuefeng1
  • Ma, Shengqi1
  • Zhang, Junhu2
  • Jiang, Zhenhua1
  • Zhang, Yunhe1, 2
  • 1 Engineering Research Center of Super Engineering Plastics, Ministry of Education, Jilin University, Changchun, 130012, China. , (China)
  • 2 State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, 130012, China. , (China)
Type
Published Article
Journal
Macromolecular rapid communications
Publication Date
Dec 01, 2020
Volume
41
Issue
24
Identifiers
DOI: 10.1002/marc.202000012
PMID: 32212189
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Heat-resistant and crosslinked polymers/ceramic composites have been prepared and investigated for enhancing high-temperature dielectric properties to adapt the development of advanced electric and electronic systems. Here, a series of crosslinkable heat-resistant poly(arylene ether sulfone)s (DPAES) with large dipole units of -SO2 - are designed and synthesized as matrix, which are blended with BaTiO3 (BT) nanoparticles to fabricate crosslinked polymer composites for boosting high-temperature dielectric properties. The results show that BT/c-DPAES possess great dielectric stability at measured frequency and temperature. Meanwhile, the discharged energy density and efficiency of BT/c-DPAES composites are higher than that of BT/DPAES at high temperatures, e.g., 10 vol% BT/c-DPAES has a discharged energy density of 1.7 J cm-3 and efficiency of 73%, increasing by 42% and 128% in contrast to BT/DPAES, respectively. The enhanced high-temperature energy storage properties can be attributed to the construction of a crosslinked polymer network, reducing leakage current density of composites. © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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