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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Acta Polymerica 43 (1992), S. 223-226 
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Meßergebnisse zur Kinetik und Thermodynamik der Absorption von Kaliumethylxanthogenat an Polyesterfasern bei verschiedenen Temperaturen werden mitgeteilt. Es wurde gefunden, daß eine Erhöhung der Temperatur des Systems eine Zunahme der von den Fasern aufgenommenen Menge an Ethylxanthogenationen bewirkt. Adsorptionsgleichgewicht, Geschwindigkeitskonstanten, Diffusionskoeffizienten, Aktivierungsenergie und Reaktionsenthalpie wurden bestimmt. Aus den Ergebnissen kann abgeleitet werden, daß die Absorption der Ethylxanthogenationen auf der Polyesterfaser im untersuchten Temperaturbereich unter Bildung starker chemischer Bindungen erfolgt.
    Notes: Data on the kinetics and thermodynamics of absorption of potassium ethyl xanthogenate onto polyester fibres at different temperatures are presented. It is established that the increase in temperature of the system increases the uptake of ethyl xanthogenate ions by the fibres. Adsorption equilibria, specific rate constants, diffusion coefficients, activation energy and enthalpy of reaction were determined. From the results the conclusion can be derived that the adsorption of ethyl xanthogenate ions on the polyester fibre in the investigated temperature interval takes place with establishment of strong chemical bonds.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Acta Polymerica 43 (1992), S. 30-33 
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Das Strömungspotential und die Adsorption von Ethylxanthogenationen an Polyesterfasern wurden bei verschiedenen Temperaturen untersucht. Die Ergebnisse zeigen, daß die Aufnahme der Ethylxanthogenationen durch die Polyesterfasern im untersuchten Temperaturbereich über die Bildung starker chemischer Bindungen erfolgt. Die Ergebnisse werden auf Basis eines nucleophilen Angriffs des negative geladenen Sauerstoffatoms in der Carbonylgruppe des Polyesters auf die Thiocarbonylgruppe des Xanthogenations interpretiert.
    Notes: An experimental investigation on the streaming potential and adsorption of ethyl xanthogenate ions on polyester fibres at various temperatures has been carried out. The results reveal that the uptake of ethyl xanthogenate ions by the polyester fibres in the tested temperature interval takes place with the establishment of strong chemical bonds. The results are interpreted on the basis of nucleophilic attack of the negatively charged oxygen in the carbonyl group of the polyester on the thiocarbonyl group of the xanthogenate ion.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis, Properties, and Structure of [2-(1′-methyl-4-imidazolyl)phenyl-1-C,3′-N]-palladium(II) AcetylacetonateThe reaction of Di-μ-chloro-bis[2-(1′-methyl-4-imidazolyl)phenyl-1-C,3′-N]palladium(II) with Thallium(I) acetylacetonate yields [2-(1′-methyl-4-imidazolyl)phenyl-1-C,3′-N]palladium(II) acetylacetonate. The complex crystallizes monoclinic in the space group P21/n with the lattice constants a = 1302.4(3), b = 836.0(2), c = 1341.3(3) pm, β = 93.69(3)°. Pd has a squareplanar coordination by two O atoms of acetylacetonate, the N atom of the imidazole ring, and the C atom of the phenyl group. I.r., n.m.r., and mass spectra are reported.
    Notes: Die Umsetzung von Di-μ-chloro-bis(2-(1′-methyl-4-imidazolyl)phenyl-1-C,3′-N]palladium(II) mit Thallium(I)-acetylacetonat ergibt [2-(1′-methyl-4-imidazolyl)phenyl-1-C,3′-N]palladium(II)-acetylacetonat. Der Komplex kristallisiert monoklin in der Raumgruppe P21/n mit den Gitterkonstanten a = 1302,4(3), b = 836,0(2), c = 1341,3(3) pm, β = 93,69(3)°. Im Molekül ist Pd quadratisch planar von den beiden O-Atomen des Acetylacetonat-Liganden, einem N-Atom des Imidazol-Rings und einem C-Atom der Phenylgruppe umgeben. IR-, NMR- und Massenspektrum werden diskutiert.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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