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Formation Mechanism of Self-Assembled Polyaniline Micro/Nanotubes

Wei, Zhixiang, Zhang, Zhiming, Wan, Meixiang·2002·Langmuir

Abstract

Self-assembled micro/nanotubes (650−76 nm in diameter) of polyaniline (PANI) were synthesized in the presence of β-naphthalene sulfonic acid (β-NSA) as a dopant. It was found that the diameter and room-temperature conductivity of the PANI−NSA tubes decreased with the decrease of the molar ratio of β-NSA to aniline. On the bases of the results obtained from X-ray diffraction (XRD) and dynamic lighting scattering (DLS), it was proposed that when the molar ratio of β-NSA to aniline was high (e. g. 2), the NSA−An salt precipitate formed by β-NSA and aniline played a “template-like” role in forming the PANI−NSA tubes, while the “template-like” role was played by the NSA−An micelle when the ratio is low (e.g., 1 / 2 or 1 / 4 ).

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Metadata

Authors
Wei, Z., Zhang, Z., & Wan, M.
Venue
Langmuir
Published
2002-01-10
Volume
18
Issue
3
Pages
917-921
ISSN
  • 0743-7463 (ISSN-L)
  • 1520-5827
OpenAlex
W1992267536
Cited by
505
References
0
FWCI
28.24
Type
journal article
Language
en
Open access
closed

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