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Rose-Like Microstructures of Polyaniline by Using a Simplified Template-Free Method under a High Relative Humidity

Authors

  • Ying Zhu,

    1. Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
    2. School of Chemistry and Environmental Science, Beijing University of Aeronautics and Astronautics, Beijing 100083, P. R. China
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  • Haiyong He,

    1. Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
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  • Meixiang Wan,

    Corresponding author
    1. Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
    • Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China. Fax: (+86) 10-8262 7566
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  • Lei Jiang

    Corresponding author
    1. Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
    • Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China. Fax: (+86) 10-8262 7566
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Errata

This article is corrected by:

  1. Errata: Rose-Like Microstructures of Polyaniline by Using a Simplified Template-Free Method under a High Relative Humidity Volume 29, Issue 23, 1908, Article first published online: 6 November 2008

Abstract

3-D rose-like microstructures of polyaniline (PANI), which are self-assembled from 2-D nanosheets consisted of 1-D nanofibers, were synthesized by a template-free method in the presence of ammonium peroxydisulfate (APS) as both oxidant and dopant under a high relative humidity of 80% for the first time. When the relative humidity increases from 25 to 80%, not only morphology of the micro/nanostructured PANI undergoes a change from 1-D nanofibers to 2-D nanosheets to 3-D rose-like microstructures, but also increase in crystallinity. It is proposed that a cooperation effect of the oriented water molecules at the vapor–water interface and difference in hydrogen bonding energies between the interface and the bulk induced by the relative high humidity results in the formation of the 3-D rose-like microstructures self-assembled from 2-D nanosheets. Moreover, the method reported may provide a simple approach for understanding self-assembly of complex micro/nanostructures of PANI.

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