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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 86 (1974), S. 451-451 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: The adsorption of poly(ethylene glycol) of molecular weights of 6 000 and 600 and of the low molecular weight model substance 2-ethoxy ethanol on aerosil is studied at 25°C in CCl4 solution by IR-spectra.The extinction of the IR absorption band at 3 300 cm-1, which is caused by hydrogen bridge bonds formed during the adsorption of the substances on aerosil, is measured in dependency of the adsorbed amount. From these measurements evidence can be given upon the conformation of the adsorbed layer.The poly(ethylene glycols) 6 000 and 600 are adsorbed irreversibly, but 2-ethoxy ethanol is adsorbed reversibly.
    Notes: Es wird die Adsorption der Polyäthylenglykole mit den mittleren Molekulargewichten 6 000 und 600 und der niedermolekularen Modellsubstanz 2-Äthoxy-äthanol (Äthylglykol) an Aerosil aus CCI4 bei 25°C mit Hilfe der Infrarot-Spektrometrie untersucht.Die Extinktion der IR-Absorptionsbande, die durch die bei der Adsorption der Substanzen an Aerosil gebildeten Wasserstoffbrückenbindung bei 3 300 cm-1 beobachtet werden kann, wird in Abhängigkeit von der adsorbierten Menge werden Aussagen zur Konformation der adsorbierten Schicht gemacht.Die Polyäthylenglykole 6 000 und 600 werden irreversibel, Äthylglykol dagegen reversibel adsorbiert.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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