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  • DMTA  (3)
  • Springer  (3)
  • American Geophysical Union (AGU)
  • 2000-2004  (3)
  • 1985-1989
  • 1975-1979
Collection
Keywords
Publisher
  • Springer  (3)
  • American Geophysical Union (AGU)
Years
  • 2000-2004  (3)
  • 1985-1989
  • 1975-1979
Year
  • 1
    Electronic Resource
    Electronic Resource
    Properties of Polyurethanes Based on Mesogenic Diol and 4,4'-methylenebis(cyclohexyl Isocyanate) (2000)
    Springer
    Journal of thermal analysis and calorimetry 60 (2000), S. 111-116 
    Details
    ISSN: 1572-8943
    Keywords: DMTA ; DSC ; HMDI ; mesogenic chain extender ; polyurethane
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract New polyurethanes with mesogenic units in the main chain due to the use of a liquid crystalline chain extender were synthesized from 4,4'-methylenebis(cyclohexyl isocyanate) (HMDI)using diisocyanates of different trans, trans isomer content, a low molecular diol4,4'-bis(6-hydroxyhexoxy)biphenyl (BHHBP) and a high molecular poly(hexyleneadipate)diol (PHA). The growth of trans, trans isomer content in HMDI used to syntheses of PU induces monotonic growth of melting point, rectilinear growth of crystallization temperatures and the growth of crystallization enthalpy, both for hard segment polyurethanes and block polyurethanes. The increase of trans, trans isomer content in HMDI increases also glass transition temperatures and dynamic storage modulus of the polyurethanes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010184804858
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  • 2
    Electronic Resource
    Electronic Resource
    Dynamic Mechanical Thermal Analysis of Polyamide 6/Biopol Blends (2000)
    Springer
    Journal of thermal analysis and calorimetry 60 (2000), S. 313-317 
    Details
    ISSN: 1572-8943
    Keywords: polyamide 6/biopol blends ; DMTA ; polyamide 6/biopol blends
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The temperature dependence investigated by means of DMTA of dynamic storage modulusE′, dynamic loss modulus E″ and loss tangent tgδ of blends obtained from polyamide 6 and poly(β-hydroxybutyrate-co-β-hydroxyvalerate) (Biopol D600G) indicated, that the dynamic mechanical properties of the blends containing up to 40% Biopol D600G are governed by the properties of polyamide 6. First at the 50% Biopol D600G content in the blend the transitions of the Biopol phase become visible and dominant. The shifts of the loss modulus maxima of the blends might indicate some interactions between the blend components in the amorphous phase.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010146618488
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  • 3
    Electronic Resource
    Electronic Resource
    Phase Transitions of Polyamide 6/Polyurethane Blends Compatibilized by Copolyurethaneamides (2000)
    Springer
    Journal of thermal analysis and calorimetry 60 (2000), S. 45-52 
    Details
    ISSN: 1572-8943
    Keywords: compatibilization ; DMTA ; DSC ; polyamide 6/thermoplastic polyurethane blends
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Blends obtained from polyamide 6 and a thermoplastic polyurethane compatibilized by diblock copolyurethaneamides were investigated by means of DMTA and DSC. The blends were prepared by compounding in a Brabender mixer. The compatibilizer affected the glass transition temperature of the amorphous phase of the blends. The non-isothermal crystallization temperature of the polyamide phase was lowered in the presence of the polyurethane and the copolyurethaneamide.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010112216245
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