Polyaniline benefited from poly(vinyl alcohol) in both conductivity and energy storage |
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| Authors: | Liuqing Yang Wenling Wu Yang Feng Yingxia Ma Shengtao Li Yanfeng Li |
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| Affiliation: | 1. State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an, People's Republic of China;2. State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, People's Republic of China |
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| Abstract: | Polyaniline (PANI) is an important conductive polymer because of its wide potential. In this article, we present a modified chemical polymerization method, which employs poly(vinyl alcohol) (PVA) as a doping assistant, for the synthesis of PANI. In this study, the introduced PVA contributed both to the conductivity and specific capacitance. The conductivity markedly increased more than two orders of magnitude from 5.2 to 1052 S/m after a small amount of PVA was introduced. A combination of the amphoteric polymer and acid together as the dopant extended the doping method for the synthesis of conductive PANI. The specific capacitance of PANI occurred up to 382.9 F/g at a current density of 0.5 A/g. The PANIs exhibited fast redox reactions, good ion response, and a short diffusion path of electronic transport. By feat of the hydrophilicity of PVA, the as‐prepared PANI showed a good dispersibility in aqueous solution; this is important for its potential applications. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133, 42989. |
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| Keywords: | composites conducting polymers electrochemistry properties and characterization surfactants |
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