Doped polyaniline/multiwalled carbon nanotube composites: Preparation and characterization

Polyaniline (PANI)/multiwalled carbon nanotube (MWNT) composites with a uniform tubular structure were prepared from in situ polymerization by dissolving amino‐functionalized MWNT (a‐MWNT) in aniline monomer. For this the oxidized multiwalled nanotube was functionalized with ethylenediamine, which p...

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Veröffentlicht in:Polymer composites 2013-07, Vol.34 (7), p.1119-1125
Hauptverfasser: Cui, Liqiang, Yu, Junsheng, Lv, Yinghai, Li, Guijiang, Zhou, Shixue
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container_end_page 1125
container_issue 7
container_start_page 1119
container_title Polymer composites
container_volume 34
creator Cui, Liqiang
Yu, Junsheng
Lv, Yinghai
Li, Guijiang
Zhou, Shixue
description Polyaniline (PANI)/multiwalled carbon nanotube (MWNT) composites with a uniform tubular structure were prepared from in situ polymerization by dissolving amino‐functionalized MWNT (a‐MWNT) in aniline monomer. For this the oxidized multiwalled nanotube was functionalized with ethylenediamine, which provided ethylenediamine functional group on the MWNT surface confirmed by Fourier‐transform infrared spectra (FT‐IR). The a‐MWNT was dissolved in aniline monomer, and the in situ polymerization of aniline in the presence of these well dispersed nanotubes yielded a novel tubular composite of carbon nanotube having an ordered uniform encapsulation of doped polyaniline. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) showed that the nanotubes were coated with a PANI layer. The thermal stability and electrical conductivity of the PANI /MWNTs composites were characterized by thermogravimetric analysis (TGA) and conventional four‐probe method respectively. Compared with pure PANI, the electrical conductivity and the decomposition temperature of the MWNTs/PANI composites increased with the enhancement of MWNT content in PANI matrix. POLYM. COMPOS., 34:1119–1125, 2013. © 2013 Society of Plastics Engineers
doi_str_mv 10.1002/pc.22520
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source Wiley Online Library Journals Frontfile Complete
subjects Aniline
Applied sciences
Composites
Dissolution
Exact sciences and technology
Forms of application and semi-finished materials
Multi wall carbon nanotubes
Nanostructure
Polyanilines
Polymer industry, paints, wood
Polymer matrix composites
Polymerization
Scanning electron microscopy
Technology of polymers
title Doped polyaniline/multiwalled carbon nanotube composites: Preparation and characterization
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