Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 1975-1979  (1)
  • 1955-1959
  • Polymer and Materials Science  (1)
Material
Years
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 176 (1975), S. 2017-2028 
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Das Gleichgewicht zwischen dem gasförmigen Monomer (g) und dem amorphen Polymer (c) wurde an 1,3-Dioxocan und 1,3,6-Trioxocan im Temperaturbereich von 100°C bis 137°C untersucht. Die ΔH0gc- und ΔS0gc--Werte wurden aus den Gleichgewichtsdrucken des Monomeren berechnet. Weiterhin wurden die thermodynamischen Daten für die Verdampfung von beiden Monomeren gemessen, mit deren Hilfe dann die ΔH01c-- und ΔS01c--Werte für die Polymerisationen berechnet werden konnten (1 bedeutet flüssige Phase). Für 1,3-Dioxocan: \documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{l} \Delta H_{{\rm gc}}^0 (298{\rm K}) = - 62,1 \pm 1,1{\rm kJmol}^{ - 1} ;\Delta H_{1c}^0 (298{\rm K}) = - 18,3 \pm 1,2{\rm kJmol}^{ - 1} \\ \Delta S_{{\rm gc}}^0 (298{\rm K}) = - 121,7 \pm 2,7{\rm JK}^{ - 1} {\rm mol}^{ - 1} ;\Delta S_{1c}^0 (298{\rm K}) = - 10,2 \pm 2,8{\rm JK}^{ - 1} {\rm m} \\ \end{array} $$\end{document} Für 1,3,6-Trioxocan: \documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{l} \Delta H_{{\rm gc}}^0 (298{\rm K}) = - 62,2 \pm 0,9{\rm kJmol}^{ - 1} ;\Delta H_{1c}^0 (298{\rm K}) = - 12,0 \pm 1,0{\rm kJmol}^{ - 1} \\ \Delta S_{{\rm gc}}^0 (298{\rm K}) = - 129,1 \pm 2,2{\rm JK}^{ - 1} {\rm mol}^{ - 1} ;\Delta S_{1c}^0 (298{\rm K}) = - 8,0 \pm 2,4{\rm JK}^{ - 1} {\rm mol} \\ \end{array} $$\end{document}
    Notes: The equilibrium between gaseous monomer (g) and amorphous polymer (c) has been studied for 1,3-dioxocane and 1,3,6-trioxocane between 100 and 137°C. From the equilibrium pressures of monomer, the ΔH0gc and ΔS0gc values have been calculated. Thermodynamic data for the vaporisation of each monomer have also been measured so that values of ΔH01c and ΔS01c for the polymerisations could be calculated (l: liquid phase). For 1,3-dioxocane: \documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{l} \Delta H_{{\rm gc}}^0 (298{\rm K}) = - 62,1 \pm 1,1{\rm kJmol}^{ - 1} ;\Delta H_{1c}^0 (298{\rm K}) = - 18,3 \pm 1,2{\rm kJmol}^{ - 1} \\ \Delta S_{{\rm gc}}^0 (298{\rm K}) = - 121,7 \pm 2,7{\rm JK}^{ - 1} {\rm mol}^{ - 1} ;\Delta S_{1c}^0 (298{\rm K}) = - 10,2 \pm 2,8{\rm JK}^{ - 1} {\rm m} \\ \end{array} $$\end{document} For 1,3,6-trioxocane: \documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{l} \Delta H_{{\rm gc}}^0 (298{\rm K}) = - 62,2 \pm 0,9{\rm kJmol}^{ - 1} ;\Delta H_{1c}^0 (298{\rm K}) = - 12,0 \pm 1,0{\rm kJmol}^{ - 1} \\ \Delta S_{{\rm gc}}^0 (298{\rm K}) = - 129,1 \pm 2,2{\rm JK}^{ - 1} {\rm mol}^{ - 1} ;\Delta S_{1c}^0 (298{\rm K}) = - 8,0 \pm 2,4{\rm JK}^{ - 1} {\rm mol} \\ \end{array} $$\end{document}
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...