期刊
MATERIALS LETTERS
卷 65, 期 13, 页码 2015-2018出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2011.04.027
关键词
Polyaniline; Electron microscopy; Nanomaterials; Self-assembly
Polyaniline nanotubes were prepared by the template-free self-assembly method in various aqueous media. Typically, polyaniline synthesized in methanol solution has a carambola-like shape covered with some nanotubes, and those obtained in acetic acid are short nanotubes accompanied with lots of nanoparticles. When appropriate mixed solution was used, uniform and long polyaniline nanotubes were obtained. The impact of proportion of methanol and acid was illustrated as well as the synergetic effect of these two components. The morphology evolution during the polymerization process was also investigated. SEM images clearly demonstrate that polyaniline nanotubes form through a self-curling behavior. The structure features of end products in various aqueous media and intermediates in the optimum mixed solution were surveyed by FTIR. (C) 2011 Elsevier B.V. All rights reserved.
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