Results 261 to 270 of about 53,809 (303)
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Thermal behavior of polyaniline films and polyaniline–polystyrene blends
Journal of Applied Polymer Science, 2002AbstractIn this article, a study of the thermal behavior of polyaniline films and polyaniline–polystyrene blends is presented. Transport measurements (electrical conductivity and thermoelectric power) at high temperature and thermogravimetric analysis show that an irreversible degradation is observed near 450 K for films doped with DiOHP and near 500 K
V. Jousseaume, M. Morsli, A. Bonnet
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Comparison of electronic transport in polyaniline blends, polyaniline and polypyrrole
Synthetic Metals, 1997Abstract The conductivity of PAni/PETG copolyester blends shows the expected reduction compared to unblended PAni, but PAni/PMMA (and PAni/PVC blends at lower temperatures) show a larger conductivity. SEM images indicate that the different behaviour of the blends appears to be associated with greater granularity retained by the PAni particles ...
A.B. Kaiser +8 more
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Investigation of the Effect of DOP on Polyaniline and Polyaniline/Polystyrene Nanocomposites
Polymer-Plastics Technology and Engineering, 2011Polyaniline nanocomposite was prepared in aqueous media by polymerization of aniline using ((NH4)2S2O8) as an oxidant in the presence of dioctyl phthalate (DOP). Also polyaniline/polystyrene (PAn/PS) nanocomposite was prepared in the aqueous solution by polymerization of styrene and aniline using potassium iodate (KIO3) and ammonium peroxy disulfate ...
Zahra Taghipour Kolaei +1 more
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Polyaniline micro- and nanostructure
Advanced Materials for Optics and Electronics, 1999A hierarchic polyaniline micro- and nanostructure is presented as a result of electron microscope studies. Molecular organisation is also discussed on the basis of experimental data and computer modelling. Copyright © 1999 John Wiley & Sons, Ltd.
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Positron beam studies on polyaniline and Ag-coated polyaniline
Applied Surface Science, 2008The effect of doping of the polyaniline emeraldine base (PEB), with Ni as well as Ni over layer coating has been investigated using variable low energy positron beam. Depth-resolved Doppler S-parameter measurements have been performed on undoped, Ni-doped polyaniline (PANI), and Ag (40 nm) film deposited PANI samples.
J.B.M. Krishna +5 more
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Perfect Diamagnetism of Polyaniline
The Journal of Physical Chemistry BHerein, we report the synthesis of Fe-doped polyaniline (D-PANI). The onset of the diamagnetism is observed to be at T < 24 K under a weak external magnetic field. D-PANI was air-stable and showed the Peierls transition, as its resistivity increased rapidly at low temperatures, thus behaving as an electromagnetic insulator.
Hiromasa Goto, Ryo Miyashita
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Surface roughness of electropolymerized polyaniline and sulfonated polyaniline layers
physica status solidi (a), 200468.35.Bs, 68.37.Ps, 68.47.Mn, 81.15.Pq, 82.45.Mp In this work we investigated the surface morphology of electrodeposited polyaniline (PANI) and sul-fonated polyaniline (SPAN) films grown directly on Si or on Au/glass substrates respectively, by applying constant or square wave potentials.
L. F. O. Martins +4 more
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Femtosecond Exciton Dynamics in Polyaniline and Polyaniline-Polymethyl Mathacrylate
Ultrafast Phenomena, 1994Polyaniline (PAn) and derivatives have been again the subject of great interest owning to the larger nonlinearity, easy fabrication and its excellent stability under ambient condition in comparison with other families of conducting polymer. Photoinduced absorption and bleaching in PAn have been observed and attributed to the existence of localized ...
W.-Z. Lin +5 more
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Electroactivity in Polyaniline
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, 1992Abstract Twenty years ago, if someone had asked for a material with which they could fabricate a yoghurt pot, as quickly as they could with polyethylene, but had the electrical properties as if it were made of aluminium, both chemists and physicists would have laughed them away.
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Corrosion protection by polyaniline and modified polyaniline coatings
2003Poznato je da prevlaka vodljivog polimera nanesena na površinu željeza (1), mekog čelika (2) ili nerđajućeg čelika (3, 4) stabilizira potencijal metala u pasivacijskom području. U ovom radu provedeno je ispitivanje za polianilinske (PANI) slojeve sintetizirane na nerđajućem čeliku u 3 mol dm-3 H2SO4 i 3 mol dm-3 H3PO4.
Duić, Ljerka +1 more
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