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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Enhanced dielectric response in all-organic polyaniline-poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene) composite
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Enhanced dielectric response in all-organic polyaniline-poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene) composite

机译：全有机聚苯胺-聚偏二氟乙烯-三氟乙烯-氯三氟乙烯复合材料的介电响应增强

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摘要

The dielectric response of an all-organic composite, comprising conductive polyaniline particles dispersed in the poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene) terpolymer matrix, was studied. The pure terpolymer exhibits dielectric properties typical for inorganic relaxors.. yet with much lower values of the dielectric constant. On the other hand, admixture of polyaniline, whose conductivity follows the Mott's variable range hopping behavior, strongly increases the dielectric constant of the terpolymer, particularly on approaching the percolation threshold. The frequency dependence of the composite's dielectric response is tentatively described in terms of the extended Maxwell-Wagner mixture approach. (c) 2006 Elsevier B.V. All rights reserved.
机译：研究了包含分散在聚偏二氟乙烯-三氟乙烯-氯三氟乙烯三元共聚物基质中的导电聚苯胺颗粒的全有机复合材料的介电响应。纯的三元共聚物表现出典型的无机弛豫剂的介电性能，但是介电常数的值低得多。另一方面，电导率遵循莫特可变范围跳变行为的聚苯胺混合物会大大提高三元共聚物的介电常数，特别是在接近渗透阈值时。用扩展的麦克斯韦-瓦格纳混合法初步描述了复合材料介电响应的频率依赖性。 （c）2006 Elsevier B.V.保留所有权利。

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