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Poly(vinyl alcohol)-assisted dispersion of polyaniline nanofiber for electrochemical applications

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Abstract

Polyaniline nanofiber (PANF) was synthesized using interfacial polymerization and was mixed with aqueous solution of poly(vinyl alcohol) (PVA) to form PANF-PVA binaries. The PANF suspension in water could be stabilized by PVA for more than 3 months due to the hydrogen bonding interaction between PANF and PVA. The specific characteristics of PANF-PVA films was checked by scanning electron microscopy, conductivity measurement, thermogravimetric analysis, Fourier transform infrared spectroscopy, and cyclic voltammetry. The composite film contained 25 wt% PVA (PANF-PVA25) casting at 105 °C was found to have a porous structure and good conductivity. The presence of hydrogen bonding interaction between PANF and PVA improves the electroactivity and electroactive stability of PANF-PVA25 for electrochemical applications. However, an ether linkage between PANF and PVA polymer chain was also found as casting the PANF-PVA film at 200 °C, which is unfavorable for electrochemical applications.

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Authors and Affiliations

  1. Department of Chemical Engineering, National Cheng Rung University, Tainan, 70101, Taiwan, People’s Republic of China

    Chi-Chang Hung, Chen-Hao Wu, Yen Wei & Yen Wei

  2. Department of Chemical and Materials Engineering, National University of Kaohsiung, Kaohsiung, 81148, Taiwan, People’s Republic of China

    Chien-Hsin Yang

  3. Department of Chemistry, Tsinghua University, Beijing, 100084, People’s Republic of China

    Ten-Chin Wen

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  1. Chi-Chang Hung
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  2. Chen-Hao Wu
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  3. Chien-Hsin Yang
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Correspondence to Ten-Chin Wen.

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Hung, CC., Wu, CH., Yang, CH. et al. Poly(vinyl alcohol)-assisted dispersion of polyaniline nanofiber for electrochemical applications. Journal of Materials Research 26, 2980–2986 (2011). https://doi.org/10.1557/jmr.2011.382

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