Core–shell structured and electro-magnetic functionalized polyaniline composites

Core–shell structured and electro-magnetic functionalized polyaniline (PANI) composites were chemically prepared by micro-spherical hydroxyl iron (Fe(OH)) magnet as the hard-template associated with a self-assembly process in the presence of β-naphthalene sulfonic acid (β-NSA) as the dopant. Field e...

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Bibliographic Details
Published in:Synthetic metals 2007-07, Vol.157 (13), p.575-579
Main Authors: Li, Xin, Shen, Jiaoyan, Wan, Meixiang, Chen, Zhaojia, Wei, Yen
Format: Article
Language:English
Subjects:
Applied sciences
Composites
Core–shell structure
Electro-magnetic function
Exact sciences and technology
Forms of application and semi-finished materials
Hydroxyl iron
Polyaniline composite
Polymer industry, paints, wood
Self-assembly process
Technology of polymers
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Summary:Core–shell structured and electro-magnetic functionalized polyaniline (PANI) composites were chemically prepared by micro-spherical hydroxyl iron (Fe(OH)) magnet as the hard-template associated with a self-assembly process in the presence of β-naphthalene sulfonic acid (β-NSA) as the dopant. Field emitting scanning electron microscope (SEM) and transmission electron microscope (TEM) measurements indicate that the electro-magnetic functionalized PANI–β-NSA/Fe(OH) composites have a novel core–shell structure, in which micro-spherical Fe(OH) magnet (0.5–5 μm in diameter) is as the core, and self-assembled PANI–β-NSA nanofibers (30–50 nm in diameter) formed on the surface of the Fe(OH) microspheres is as the shell (60 nm in thickness). Moreover, the electro-magnetic properties of the core–shell micro/nanostructured composites are adjustable by changing the ratio of Fe(OH) to aniline monomer.
ISSN:0379-6779
1879-3290
DOI:10.1016/j.synthmet.2007.06.007