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  • 1995-1999
  • 1980-1984  (2)
  • 1965-1969
  • 1980  (2)
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  • 1995-1999
  • 1980-1984  (2)
  • 1965-1969
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  • 1
    facet.materialart.
    Unknown
    Berlin : Periodicals Archive Online (PAO)
    Deutsche Zeitschrift für Philosophie. 28:1 (1980) 38 
    ISSN: 0012-1045
    Topics: Philosophy
    Notes: ZUM 3. KONGRESS DER MARXISTISCH-LENINISTISCHEN SOZIOLOGIE IN DER DDR
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  • 2
    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: Summary The dielectric relaxation of the dipolar label tetraisobutenyl-(and polyisobutenyl-) succinic anhydride has been investigated as well as in mixtures with polyisobutene (PIB), the concentration of the label varying between 0.03 (0.3) and 6 (30) percent by weight. The admixed label TIBBSA (PIBBSA) relaxes — independent of concentration —40 (100) times slower than PIB in the glass process. Its relaxation strength shows an anomalous concentration dependence in the range near 1.5 (5) percent. This finding can be quantitatively explained by the meander model if one assumes that pairs of label molecules preferentially deposit in the meander folds.
    Notes: Zusammenfassung Es wird über das dielektrische Relaxationsverhalten der beiden Mischungsreihen Tetra- (bzw. Poly-)isobutenylbern-steinsäureanhydrid/PIB im Konzentrationsbereich 0.03 (0.3) bis 6 (30) Gewichtsprozent berichtet. Der polare Mischungspartner TIBBSA (PIBBSA) relaxiert — unabhängig von der Konzentration — um den Faktor 40 (100) langsamer als PIB im Glasprozess. Sein Relaxationsbetrag zeigt im Gebiet um 1,5 (5) Gewichtsprozent eine anomale Konzentrationsabhängigkeit. Diese Mt sich unter der Annahme bevorzugter Einlagerung von Labelmolekiilpaaren in Superstrukturfalten im Rahmen des Mäandermodells quantitativ verstehen.
    Type of Medium: Electronic Resource
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