Article

Mechanism of Thermal Degradation of an Inorganic-Organic Hybrid Based on an Epoxy-POSS

  1. Belén Montero,
  2. Carmen Ramírez*,
  3. Maite Rico,
  4. Araceli Torres,
  5. Jesús Cano,
  6. Joaquín López

Article first published online: 11 JUL 2008

DOI: 10.1002/masy.200850713

Issue

Macromolecular Symposia

Macromolecular Symposia

Special Issue: Nanostructured Polymers and Polymer Nanocomposites

Volume 267, Issue 1, pages 74–78, June 2008

Additional Information

How to Cite

Montero, B., Ramírez, C., Rico, M., Torres, A., Cano, J. and López, J. (2008), Mechanism of Thermal Degradation of an Inorganic-Organic Hybrid Based on an Epoxy-POSS. Macromol. Symp., 267: 74–78. doi: 10.1002/masy.200850713

Author Information

  1. Dpto. Física. Universidad de A Coruña. E.U.P. Avda. 19 de Febrero s/n, 15405 Ferrol, Spain

*Dpto. Física. Universidad de A Coruña. E.U.P. Avda. 19 de Febrero s/n, 15405 Ferrol, Spain.

Publication History

  1. Issue published online: 11 JUL 2008
  2. Article first published online: 11 JUL 2008

Funded by

  • MAT2004-01580
  • XUGA-PGIDIT05PXIC1-7201PN

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Keywords:

  • degradation;
  • epoxy;
  • silsesquioxanes;
  • thermogravimetric analysis

Abstract

A novel inorganic-organic hybrid material, belonging to the family of polyhedral oligomeric silsesquioxanes (POSS), was used to reduce the trend of a conventional epoxy-amine system to undergo combustion. The mixtures with different percentages in weight of POSS, and equal number of equivalents between of epoxy and amino groups were tested by thermogravimetic analysis (TGA) in both, argon and oxygen atmospheres. The results indicated that the char/ceramic yield values increase with the content of POSS and therefore, fire resistance is enhanced. Activation energies of degradation processes were obtained by Kissinger-Akahira-Sunose method. An empirical kinetic model satisfactorily explained the degradation mechanism of different blends.

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