Thermogravimetric analysis of cellulose: Effect of the molecular weight on thermal decomposition
Article first published online: 9 MAR 2003
Copyright © 1989 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 37, Issue 12, pages 3305–3314, 20 June 1989
How to Cite
Calahorra, M. E., Cortázar, M., Eguiazábal, J. I. and Guzmán, G. M. (1989), Thermogravimetric analysis of cellulose: Effect of the molecular weight on thermal decomposition. J. Appl. Polym. Sci., 37: 3305–3314. doi: 10.1002/app.1989.070371203
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Accepted: 24 MAY 1988
- Manuscript Received: 5 FEB 1988
Cellulose fractions of different molecular weights were subjected to dynamic thermogravimetric analysis in a nitrogen atmosphere. From the experimental data, activation energies and reaction orders were obtained following the Freeman–Carroll and Broido methods. The thermal stabilities of the samples were estimated taking into account the values of Ti, Tmax, and Ea. The results show that thermal stability increases as the molecular weight increases. It was also found that the cellulose pyrolisis process cannot be described as having a single value of Ea over the entire pyrolisis range. The dependence of Ea. The dependence of Ea on molecular weight is also discussed.