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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of thermal analysis and calorimetry 38 (1992), S. 1883-1890 
    ISSN: 1572-8943
    Keywords: flow microcalorimeter ; hydrophobic interaction ; molar excess enthalpies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Mittels eines Fluß-Mikrokalorimeters wurden bei 298.15 K im gesamten Konzentrationsintervall die molaren Überschußenthalpien für wäßrige Lösungen aus 3-Methoxy-1-Butanol (3-MB) und 1-Methoxy-2-Butanol (M-2B) gemessen. Anhand der experimentellen Daten erstellten wir den Enthalpiepaar-Wechselwirkungsparameter hxx und erhielten folgende Reihenfolge: hxx(3-MB) ≫ hxx(M-2B) Diese große Abweichung bei hxx legte uns einige neue Faktoren nahe, die einen Einfluß auf die hydrophobe Wechselwirkung haben können: “Grundgerüst”, “Hydroxylgruppen” als auch “Sauerstoffatome”.
    Notes: Abstract Molar excess enthalpies for aqueous solutions of 3-methoxy-1-butanol (3-MB) and 1-methoxy-2-butanol (M-2B) have been measured at 298.15 K over the whole concentration range with a flow microcalorimeter. From the experimental data, we evaluated the enthalpic interaction parameter hxx and obtained the following order:h xx (3 MB)≫ hxx(M-2B) This large difference in hxx. provided us some new factors which might have the influence on hydrophobic interaction: ‘fundamental frame’, ‘hydroxyl group’, and ‘ether oxygen atom’.
    Type of Medium: Electronic Resource
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