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  • 1990-1994  (2)
  • 24.60.Ky  (1)
  • Polymer and Materials Science  (1)
  • (Rat)
  • Antarctica fish
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  • 1990-1994  (2)
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  • 1
    ISSN: 1434-601X
    Keywords: 25.70.Lm ; 24.60.Ky
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract It is shown that the Partially Overlapping Molecular Level Model (POMLM) accounts for the experimental results of the dissipative28Si +48Ti collision around 210 MeV incident energy. The general trend of the properties of the fluctuations as well as the average angular distributions are reproduced by the same set of main parameters. A general consistency is also found between the present data and the data obtained in previous work on the same colliding system performed at lower incident energy (around 123 MeV).
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Acta Polymerica 43 (1992), S. 327-330 
    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: Die physikalischen Eigenschaften von Polymercompositen, die durch Mischung des kristallinen, bioabbaubaren und bioverträglichen Polymers Poly-D( - )(3-hydroxybutyrat) (PHB) mit nichtkristallinem, ataktischen Poly(epichlorhydrin) (PECH) erhalten wurden, werden untersucht. Die durch Eindampfen von Lösungen hergestellten PHB/PECH-Mischungen wurden mit Hilfe von thermomechanischen, röntgenographischen und viskolastischen Messungen sowie durch ihr Festigkeits- und Dehnungsverhalten charakterisiert. Aus den Ergebnissen wurde geschlossen, daß die kristallinen Bereiche des PHB die Rolle von Vernetzungen spielen, während das zwischen den kristallinen Bereichen befindliche amorphe PECH als Weichmacher wirkt. Ein einfacher dynamischer Verlustmodul, der der Glasübergangstemperatur entspricht, weist auf die Mischbarkeit des kristallinen PHB mit dem amorphen PECH hin.
    Notes: Physical properties of a new polymer blend obtained by mixing poly-D( - )(3-hydroxybutyrate) (PHB), a crystalline polymer with interesting properties of biodegradability and biocompatibility, with uncrystallizable atactic poly(epichlorohydrin) (PECH) were studied. PHB/PECH blends, obtained by casting solution, were analysed by thermomechanical and X-ray analysis, viscoelastic measurements, and on the basis of strength and elongation measurements. It was concluded that the crystalline region of PHB plays an important role of crosslinks, and amorphous PECH filled between the crystalline regions plays a role of plasticizer. A single dynamic loss modulus, corresponding to the glass transition temperature, implies the miscibility between crystalline PHB and amorphous PECH.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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