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  • 1
    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: By small-angle X-ray scattering, differential scanning calorimetry, gravimetry, and determination of molecular mass it is confirmed that transcrystalline layers, which frequently arise at free polyethylene surfaces or at interfaces to mineral powders, are the consequence of thermooxidative degradation of the polymer. A comparison of the structures at interfaces between two different types of polyethylene in absence of oxygen shows the same mechanism of formation.
    Notes: Durch Röntgenkleinwinkelstreuung, Differential-Scanning-Calorimetrie, Gravimetrie und Molmassenbestimmung wird bestätigt, daß die an freien Polyethylenoberflächen oder an Grenzflächen zu pulverförmig aufgebrachten mineralischen Beschichtungsstoffen häufig entstehenden transkristallinen Schichten durch thermooxidativen Abbau des Polyethylens bedingt sind. Ein Vergleich mit den zwischen zwei unterschiedlichen Polyethylenen ohne Einfluß des Luftsauerstoffs entstehenden Strukturen zeigt, daß der Bildungsmechanismus der gleiche ist.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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