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  • Other topics in molecular spectra and molecular interactions with photons  (1)
  • configurational entropy  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Analysis of the CO vibrational distribution obtained from formaldehyde laser photodecomposition (1985)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 6 (1985), S. 225-230 
    Details
    ISSN: 0392-6737
    Keywords: Other topics in molecular spectra and molecular interactions with photons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Si ottiene una semplice analisi della distribuzione vibrazionale complete di CO ottenuta dalla fotodecomposizione con laser della formeldeide. L'estrapolazione ad energia trasferita vibrazionale a CO dà un valore di energia di (2770±80) cm−1 per l'intermedio che si assume nella predissociazione della formaldeide. Il risultato ottenuto risulta molto ragionevole e coerente con molti meccanismi suggeriti in studi precedenti.
    Notes: Summary A simple analysis of the overall CO vibrational distribution obtained from formaldehyde laser photodecomposition has been carried out. Extrapolation to zero vibrational energy transfer to CO gives an energy value of (27770±80) cm−1 for the intermediate assumed in the formaldehyde predissociation. The result obtained turns out to be very reasonable and consistent with several mechanisms suggested in previous studies
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02450559
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Structural relaxation of glass-forming polymers based on an equation for configurational entropy, 4. Structural relaxation in styrene-acrylonitrile copolymer (1997)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 35 (1997), S. 2201-2217 
    Details
    ISSN: 0887-6266
    Keywords: structural relaxation ; physical aging ; differential scanning calorimetry ; configurational entropy ; enthalpy relaxation ; heat capacity ; styrene-acrylonitrile copolymer ; Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The structural relaxation process in styrene-acrylonitrile copolymer has been characterized by means of differential scanning calorimetry (DSC) experiments. The results in the form of heat capacity, cp(T), curves are analyzed using a model for the evolution of the configurational entropy during the process recently proposed by the authors.11,12 The model simulation allows one to determine the enthalpy (or entropy) structural relaxation times and the β parameter of the Kohlrausch-Williams-Watts equation characterizing the width of the distribution of relaxation times. This material parameters are compared with their analogues determined from the dielectric and dynamic-mechanical relaxation processes. © 1997 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 35: 2201-2217, 1997
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
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