Results 221 to 230 of about 35,887 (261)
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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
openaire   +1 more source

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   +8 more
openaire   +1 more source

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   +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   +5 more
openaire   +1 more source

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   +4 more
openaire   +1 more source

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   +5 more
openaire   +1 more source

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   +2 more
openaire   +1 more source

Polyaniline dispersions 4. Polymerization seeded by polyaniline particles

Acta Polymerica, 1994
AbstractAniline hydrochloride was polymerized in water and in 1 M hydrochloric acid by oxidation with ammonium persulfate. The macroscopic precipitation of polyaniline was prevented by the presence of poly(vinyl alcohol). The change of pH occurring during the reaction were recorded. Their relation to color transitions is discussed.
J. Stejskal   +2 more
openaire   +1 more source

Corrosion protection by polyaniline and modified polyaniline coatings

2003
Poznato 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
openaire  

Polyaniline Nanocomposites

2010
Fischer, H., Kunen, J.
openaire   +2 more sources

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