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, 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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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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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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Deuteron NMR Study of Polyaniline and Polyaniline/Clay Nanocomposite
Macromolecules, 2003Different 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
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Polyaniline dispersions 4. Polymerization seeded by polyaniline particles
Acta Polymerica, 1994AbstractAniline 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
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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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