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Polymer Bulletin

, Volume 58, Issue 5–6, pp 923–931 | Cite as

Thermal properties of polynorbornene (cis- and trans-) and hydrogenated polynorbornene

  • Miguel A. Esteruelas
  • Fernando González
  • Juana Herrero
  • Patricia Lucio
  • Montserrat Oliván
  • Begoña Ruiz-Labrador
Article

Summary

The thermal properties of trans-polynorbornene, cis-polynorbornene and hydrogenated polynorbornene were examined and its reversibility tested. Trans-polynorbornene samples, formed in various solvents, exhibit a softening range, from ambient temperature until 375 °C. However, syndiotactic cis-polynorbornene samples show a narrower melting range (between 150 and 375 °C). The fusion enthalpies of cis-polynorbornene samples are around 300-400 J/g. The temperature of decomposition is ca. 456 °C (minimum peak DSC) for trans-polynorbornene and ca. 466 °C, 10 °C higher, for cis-polynorbornene. The solvent used for the polymerization of norbornene has a negligible influence in the melting temperature range or in the decomposition temperature. The treatment with 2,6-di-tert-butyl-4-methyl-phenol during the isolation of polynorbornene leads to materials with different thermal properties. Trans-polynorbornene isolated without 2,6-di-tert-butyl-4-methyl-phenol exhibited an exothermic peak accompanied by an slight increase in weight (1-2%), while samples treated with 2,6-di-tert-butyl-4-methyl-phenol do not show these features.

Keywords

Heat Flow Exothermic Peak Norbornene Fusion Enthalpy Polynorbornene 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • Miguel A. Esteruelas
    • 1
  • Fernando González
    • 2
  • Juana Herrero
    • 2
  • Patricia Lucio
    • 2
  • Montserrat Oliván
    • 1
  • Begoña Ruiz-Labrador
    • 2
  1. 1.Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de AragónUniversidad de Zaragoza, CSICZaragozaSpain
  2. 2.Departamento de Ingeniería Química y Química InorgánicaUniversidad de CantabriaSantanderSpain

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