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Open AccessArticle

Influence of Carbon Nanotubes on Thermal Stability of Water-Dispersible Nanofibrillar Polyaniline/Nanotube Composite

1
iPack VINN Excellence Center, School of Information and Communication Technology, Royal Institute of Technology (KTH), Stockholm SE-164 40, Sweden
2
Department of Physics, Chemistry and Biology, Linköping University, Linköping SE-581 83, Sweden
3
Solid-State Electronics, Department of Engineering Sciences, Uppsala University, P.O. Box 534, Uppsala SE-751 21, Sweden
*
Author to whom correspondence should be addressed.
Materials 2012, 5(2), 327-335; https://doi.org/10.3390/ma5020327
Received: 2 December 2011 / Accepted: 9 February 2012 / Published: 17 February 2012
(This article belongs to the Special Issue Carbon Nanotubes: Synthesis, Characterization and Applications)
Significant influence on the thermal stability of polyaniline (PANI) in the presence of multi-walled carbon nanotubes (MWCNTs) is reported. By means of in-situ rapid mixing approach, water-dispersible nanofibrillar PANI and composites, consisting of MWCNTs uniformly coated with PANI in the state of emeraldine salt, with a well-defined core-shell heterogeneous structure, were prepared. The de-protonation process in PANI occurs at a lower temperature under the presence of MWCNTs on the polyaniline composite upon thermal treatment. However, it is found that the presence of MWCNTs significantly enhances the thermal stability of PANI’s backbone upon exposure to laser irradiation, which can be ascribed to the core-shell heterogeneous structure of the composite of MWCNTs and PANI, and the high thermal conductivity of MWCNTs. View Full-Text
Keywords: polyaniline; carbon nanotubes; conducting polymers; thermal stability; Raman spectroscopy polyaniline; carbon nanotubes; conducting polymers; thermal stability; Raman spectroscopy
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Cabezas, A.L.; Liu, X.; Chen, Q.; Zhang, S.-L.; Zheng, L.-R.; Zhang, Z.-B. Influence of Carbon Nanotubes on Thermal Stability of Water-Dispersible Nanofibrillar Polyaniline/Nanotube Composite. Materials 2012, 5, 327-335.

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