Polypyrrole random-coil induced permittivity from negative to positive in all-organic composite films

作     者：Peng Wang Zhongbin Pan Mingkun Wang Shuangwu Huang Jinjun Liu Jiwei Zhai 

作者机构：School of Materials Science and Chemical EngineeringNingbo UniversityNingboZhejiang315211China School of Materials Science&EngineeringTongji University4800 Caoan RoadShanghai201804China 

出 版 物：《Journal of Materiomics》 (无机材料学学报（英文）)

年 卷 期：2020年第6卷第2期

页      面：348-354页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学] 

基　　金：supported by the Ministry of Science and Technology of China through 973-project under Grant(2015CB654601) National Nature Science Foundation of China(51902167) Fund in Ningbo University Key Laboratory of Engineering Dielectrics and Its Application(Harbin University of Science and Technology),Ministry of Education 

主　　题：Polypyrrole Composite films Random coil Negative permittivity 

摘      要：Percolating composites with negative permittivity can be promising candidates for ***,novel all-organic composite films containing of random coil polypyrrole(PPy)and poly(-vinylidene fluoride)(PVDF)are fabricated via a solution casting *** random coil PPy is prepared by oxidative template assembly approach for the first *** experimental result indicates that the negative permittivity is easily adjusted through controlling the random coil PPy ***,the random coil PPy contents exceeded 7 wt% the negative permittivity appear attributed to the formation of 3D interconnected PPy *** facile approach not only opens a new way to preparing negative permittivity of all-organic composite films,but also points out a route to facilitate the practical applications of metamaterials.