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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 252 (1974), S. 482-485 
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Zusammenfassung Ein stabiles und wenig wasserlösliches Radikal, t-Butyl(1,1-Dimethylpentyl)-Nitroxid, wurde in vier Reihen von wäßrigen Tensidlösungen mit verschiedenen Konzentrationen bis zur Sättigung solubilisiert. Die untersuchten Tenside waren Natrium Oktyl-, Decyl-, Dodecyl-, und Tetradecyl-Sulfate. Der Vergleich der gemessenen ESR-Spektren mit theoretischen Spektren zeigten, daß die durchschnittliche Verweilzeit eines Radikalmoleküls in einer Mizelle unempfindlich gegen die Änderung der Tensidkonzentration ist und mit der Alkylkettenlänge des Tensids gering, jedoch stetig zunimmt.
    Notes: Summary A stable and slightly water-soluble radical, t-butyl(1,1-dimethylpentyl) nitroxide, was solubilized up to saturation into series of aqueous surfactant solutions of various concentrations. The surfactants examined were sodium octyl, decyl, dodecyl, and tetradecyl sulfates. Comparisons of ESR spectra obtained experimentally with computer-generated theoretical spectra revealed that the average stay-time of a radical molecule in a micelle is insensitive to the change of surfactant concentration, and that an increase in the alkyl-chain length of the surfactant brings about a slight but steady increase of the stay-time.
    Type of Medium: Electronic Resource
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