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  • 1
    Electronic Resource
    Electronic Resource
    A Fourier transform Raman study of water sorption by Nylon 6 (1994)
    Springer
    Polymer bulletin 33 (1994), S. 681-686 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary The changes to Fourier transform Raman spectra of Nylon 6 due to the presence of water have been examined. It is postualted that water molecules disrupt the inter-chain hydrogen-bonding which exists in the polyamide; water molecules have a greater propensity to interact at the basic carbonyl sites of Nylon than adjacent Nylon chains. The Raman spectra of thermally softented Nylon are also reported. Increased temperature is shown to destroy hydrogen-bonding. Comparison of thermally and solvent plasticised Nylon 6 indicate differing spectral changes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00296082
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The effect of crystallinity on the scratch hardness of poly(ether ether ketone) (1996)
    Springer
    Polymer bulletin 36 (1996), S. 767-771 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary This paper describes a study of the surface properties of the poly(ether ether ketone) (PEEK) using a scratch hardness technique. A comparison of the hardness values determined for amorphous and crystalline PEEK shows that the crystalline polymer is harder. In addition, comparison of the scratch frictional behaviour indicates several friction mechanisms apply for this polymer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00338642
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    A Fourier transform Raman study of water sorption by Kevlar-49 (1995)
    Springer
    Polymer bulletin 35 (1995), S. 727-733 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary The Fourier transform (FT) Raman spectrum of poly (p-phenylene terephthalamide) (Kevlar-49) is reported. Additional bands, not observed in the conventional Raman spectrum, have been assigned. The changes to the FT-Raman spectrum of Kevlar due to the presence of water have also been examined. As a consequence of the intensity changes to certain Raman modes in this preliminary study, it is postulated that water molecules form liquid-like clusters between the crystallite regions of Kevlar fibres.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00294956
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Temperature studies of polycarbonate using Fourier transform Raman spectroscopy (1996)
    Springer
    Polymer bulletin 36 (1996), S. 341-346 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary The temperature dependence of the Fourier transform Raman spectrum of polycarbonate has been investigated. C−O−C stretching and C−H stretching modes were found to be temperature-sensitive. The changes noted indicate the presence of a cis-trans conformation for the crystalline polymer, while the cis-cis conformation predominates in amorphous polycarbonate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00319235
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    Paper (German National Licenses)
    Fulltext
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