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Article
Temperature dependence of the intensity of fluorescence of poly(n-vinylcarbazole) films
The fluorescence spectra of thin films of poly(N-vinylcarbazole), PVCA, were measured at temperatures between 103 K and 535 K by constant excitation light intensity. Below 300 K, the corrected spectra were div...
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Article
Nanostructural composites of phthalocyanine and metals
Thin composite films of metal nanoparticles incorporated into a phthalocyanine matrix were prepared by simultaneous vacuum deposition of copper and phthalocyanine from two evaporation sources. Absorption spect...
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Article
Host-guest Interactions in Intercalates Zr(HPO4)2·2C2H5OH and VOPO4·2C2H5OH
Molecular mechanics simulations using Cerius2 modelling environment combined with vibrational spectroscopy (IR and Raman) have been used to study the host-guest interactions in zirconium and vanadyl phosphate int...
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Article
Montmorillonite and Beidellite Intercalated with Tetramethylammonium Cations
Molecular mechanics simulations, combined with X-ray powder diffraction and infrared spectroscopy, have been used in structure analysis of montmorillonite and beidellite intercalated with tetramethylammonium c...
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Article
Molecular dynamics and IR spectroscopy in investigation of phase transitions in molecular crystal 4,4'-bis(11-hydroxy-1-undecyloxy)biphenyl
Molecular dynamics (MD) simulations combined with temperature-dependent IR spectroscopic measurements were used to study phase transitions in molecular crystals of the mesogenic diol 4,4'-bis(11-hydroxy-1-und...
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Article
Intercalates of Vanadyl Phosphate with Aliphatic Nitriles
Intercalates of vanadyl phosphate with aliphatic nitriles (acetonitrile, propionitrile, butyronitrile, valeronitrile and hexanenitrile) were prepared and characterized by X-ray powder diffraction, thermogravim...
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Article
Structure analysis of montmorillonite intercalated with rhodamine B: modeling and experiment
The intercalation process and the structure of montmorillonite intercalated with [rhodamine B]+ cations have been investigated using molecular modeling (molecular mechanics and molecular dynamics simulations), X-...
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Article
Intercalates of Vanadyl Phosphate with Dinitriles
Intercalates of vanadyl phosphate with aliphatic dinitriles (malononitrile, succinonitrile, glutaronitrile, adiponitrile, pimelonitrile and suberonitrile) were prepared and characterized by X-ray powder diffra...
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Article
Intercalation of 1,2-Alkanediols into α-Zirconium Hydrogenphosphate
Intercalation compounds of α-Zr(HPO4)2 · H2O with 1,2-alkanediols (from C3 to C16) have been prepared by replacing 1-propanol in α-Zr(HPO4)2 · 2C3H7OH with the desired 1,2-alkanediols by a treatment in a microwav...
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Article
Polyaniline-coated cellulose fibers decorated with silver nanoparticles
Cellulose fibers of 20 μm in diameter and aspect ratio of 2 or 10 were coated with protonated polyaniline (PANI) during the oxidation of aniline hydrochloride with ammonium peroxydisulfate in an aqueous medium...
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Article
Reduction of silver nitrate by polyaniline nanotubes to produce silver-polyaniline composites
Polyaniline (PANI) nanotubes were prepared by oxidation of aniline in 0.4 M acetic acid. They were subsequently used as a reductant of silver nitrate in 1 M nitric acid, water or 1 M ammonium hydroxide at vari...
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Article
The role of acidity profile in the nanotubular growth of polyaniline
Conditions of polyaniline (PANI) nanotubes preparation were analyzed. Aniline was oxidized with ammonium peroxydisulfate in 0.4 M acetic acid. There are two subsequent oxidation steps and the products were col...
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Article
The preparation of conducting polyaniline–silver and poly(p-phenylenediamine)–silver nanocomposites in liquid and frozen reaction mixtures
The oxidation of aniline with silver nitrate in 1 mol L−1 acetic acid at 20 °C yielded a composite of two conducting components, polyaniline and silver; the acceleration with 1 mol% of p-phenylenediamine is neede...
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Article
Spectroscopy of thin polyaniline films deposited during chemical oxidation of aniline
Any surface immersed in the aqueous reaction mixture used for the preparation of polyaniline becomes coated with a polyaniline film of submicrometre thickness. In this way, various materials can be modified by...
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Article
Influence of ethanol on the chain-ordering of carbonised polyaniline
Polyaniline (PANI) was prepared by the oxidation of aniline hydrochloride with ammonium peroxydisulphate in water or in a water-ethanol mixture. In the presence of ethanol, PANI nanotubes and nanorods were obs...
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Article
Multi-wall carbon nanotubes with nitrogen-containing carbon coating
Polyaniline coating was deposited on the surface of multi-wall carbon nanotubes of Russian and Taiwanese origin in situ during the polymerization of aniline. The deposited polyaniline film was subsequently car...
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Article
Preparation of polyaniline in the presence of polymeric sulfonic acids mixtures: the role of intermolecular interactions between polyacids
Polyaniline (PANI) was synthesized by chemical oxidation of aniline in the presence of mixtures of water-soluble poly(sulfonic acids) of different nature. Under these conditions, the use of polyacid templates ...
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Article
Electrorheology of aniline oligomers
Aniline oligomers were prepared by the oxidation of aniline with p-benzoquinone in aqueous solutions of methanesulfonic acid (MSA) of various concentrations. Their molecular structures were assessed by Fourier tr...
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Article
Conducting materials prepared by the oxidation of p-phenylenediamine with p-benzoquinone
p-Phenylenediamine was oxidized with p-benzoquinone in the aqueous solutions of methanesulfonic acid (MSA). The conductivity of the products increased with increasing concentration of MSA...
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Article
Coaxial conducting polymer nanotubes: polypyrrole nanotubes coated with polyaniline or poly(p-phenylenediamine) and products of their carbonisation
Polypyrrole nanotubes were prepared by the oxidation of pyrrole with iron(III) chloride in a reaction mixture containing methyl orange. They were subsequently coated with polyaniline or poly(p-phenylenediamine) i...
