Chemical One Step Method to Prepare Polyaniline Nanofibers with Electromagnetic Function

A “Chemical one step method” (COSM) is proposed to prepare electromagnetic functional composite nanofibers of polyaniline (PANI/γ‐Fe2O3) having a diameter of ≈20 nm. In this approach FeCl3 is acts as the oxidant either for polymerization of aniline or for preparation of γ‐Fe2O3 magnets. Besides, it...

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Bibliographic Details
Published in:Macromolecular rapid communications. 2007-03, Vol.28 (5), p.585-590
Main Authors: Zhang, Zhiming, Deng, Junying, Shen, Jiaoyan, Wan, Meixiang, Chen, Zhaojia
Format: Article
Language:English
Subjects:
Applied sciences
chemical one step method
Composites
electromagnetic function
Exact sciences and technology
Forms of application and semi-finished materials
polyaniline composite nanofibers
Polymer industry, paints, wood
super-paramagnetic property
Technology of polymers
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Summary:A “Chemical one step method” (COSM) is proposed to prepare electromagnetic functional composite nanofibers of polyaniline (PANI/γ‐Fe2O3) having a diameter of ≈20 nm. In this approach FeCl3 is acts as the oxidant either for polymerization of aniline or for preparation of γ‐Fe2O3 magnets. Besides, it also provides protons produced by the hydrolysis process for doping PANI. It is found that the composite nanofibers have a high conductivity (10−1 ∼ 100 S · cm−1) and super‐paramagnetic properties (Ms = 0.46 ∼ 6.03 emu · g−1 and Hc = 0) at room temperature, where the conductivity is mainly affected by the molar ratio of FeCl3 to aniline monomer whereas the magnetic properties are dominated by the amount of FeCl2.
ISSN:1022-1336
1521-3927
DOI:10.1002/marc.200600729