Results 1 to 10 of about 70,979 (302)

Deuteron NMR Study of Polyaniline and Polyaniline/Clay Nanocomposite

Macromolecules, 2003
Different forms of solid polyaniline (Pani) and polyaniline intercalated into montmorillonite clay layers have been characterized by solid-state deuteron quadrupole echo and magic angle spinning NM...
Yanina A. Goddard, Robert L. Vold, Gina L. Hoatson   +2 more
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Polyaniline micro- and nanostructure

Advanced Materials for Optics and Electronics, 1999
A 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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Catalytic reduction of benzoquinone at polyaniline and polyaniline/enzyme films

Electroanalysis, 1993
AbstractThe enzyme‐mediator‐conducting polymer model provides a convenient charge transporting immobilization matrix for redox enzymes in potential biosensor constructions. This study considers the charge transport mechanism in the benzoquinone (Q)‐polyaniline (Pani) system.
Julia C. Cooper, Elizabeth A. H. Hall
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Perfect Diamagnetism of Polyaniline

The Journal of Physical Chemistry B
Herein, 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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Thermal behavior of polyaniline films and polyaniline–polystyrene blends

Journal of Applied Polymer Science, 2002
AbstractIn 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, 1997
Abstract 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, C.-J. Liu, P.W. Gilberd, B. Chapman, N.T. Kemp, B. Wessling, A.C. Partridge, W.T. Smith, J.S. Shapiro   +8 more
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Investigation of the Effect of DOP on Polyaniline and Polyaniline/Polystyrene Nanocomposites

Polymer-Plastics Technology and Engineering, 2011
Polyaniline 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, Hossein Eisazadeh   +1 more
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Positron beam studies on polyaniline and Ag-coated polyaniline

Applied Surface Science, 2008
The 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, S. Abhaya, G. Amarendra, C.S. Sundar, Abhijit Saha, B. Ghosh   +5 more
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Surface roughness of electropolymerized polyaniline and sulfonated polyaniline layers

physica status solidi (a), 2004
68.35.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, R. M. Q. Mello, M. L. Sartorelli, I. A. H�mmelgen, A. A. Pasa   +4 more
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Femtosecond Exciton Dynamics in Polyaniline and Polyaniline-Polymethyl Mathacrylate

Ultrafast Phenomena, 1994
Polyaniline (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, H. Wang, T.-S. Lai, D. Mo, Y.-M. Ou, K.-C. Gong   +5 more
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