Studies on thermal degradation of cellulose and cellulose phosphoramides

Kaur, Baljinder ORCID: 0000-0002-3621-3724, Gur, I. S. and Bhatnagar, Hari L. (1986) Studies on thermal degradation of cellulose and cellulose phosphoramides. Journal of Applied Polymer Science, 31 (2). pp. 667-683. ISSN 0021-8995

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/app.198...

Abstract

Reaction of cellulose with hexamethylphosphoric acid triamide has been investigated under various physical conditions. Dimethylamine hydrochloride was found to be an efficient catalyst for the system. The thermal degradation of cellulose and its phosphoramide products in air was studied by DTA, TG, and DTG techniques from ambient temperature to 500°C. The data were processed for the various thermodynamic parameters following the methods of Freeman and Carroll, of Broido, and of Dave and Chopra. The energies of activation, Ea, for the degradation for various cellulose phosphoramide samples were found to be in the range of 92–136 kJ mol−1. These values were found to decrease with increase in the degree of substitution. A mechanism for the thermal degradation of cellulose phosphoramide has been proposed. The IR spectra of char residues of cellulose phosphoramide gave an indication of the formation of compounds containing CO and PO groups.

Item Type: Article
Additional Information: Metadata only available from this repository. Definitive article published by and Copyright © 1986 John Wiley \& Sons. The definitive version of this article is available from http://onlinelibrary.wiley.com/doi/10.1002/app.1986.070310231/abstract
Divisions: University of Bolton Research Centres > Institute for Materials Research and Innovation
Depositing User: Scott Wilson
Date Deposited: 26 Nov 2013 12:52
Last Modified: 19 Mar 2018 16:20
Identification Number: 10.1002/app.1986.070310231
URI: http://ubir.bolton.ac.uk/id/eprint/445

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