Thermal behavior of cellulose and some cellulose derivatives

Citation
Ama. Nada et Ml. Hassan, Thermal behavior of cellulose and some cellulose derivatives, POLYM DEGR, 67(1), 2000, pp. 111-115
Citations number
14
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
POLYMER DEGRADATION AND STABILITY
ISSN journal
01413910 → ACNP
Volume
67
Issue
1
Year of publication
2000
Pages
111 - 115
Database
ISI
SICI code
0141-3910(2000)67:1<111:TBOCAS>2.0.ZU;2-7
Abstract
Cellulose, cyanoethyl cellulose, grafted cellulose, and grafted cyanoethyl cellulose derivatives of different nitrogen contents underwent thermal trea tment. Nitrogen content and the treatment during preparation played a role in the thermal behavior of the cellulose derivatives. Increasing the nitrog en content resulted in a decrease in the decomposition temperature of cellu lose derivatives. Also, the cyanoethyl cellulose, although it had a lower n itrogen content than grafted cellulose, had a decomposition temperature low er than grafted cellulose. The rate constant (min(-1)) of weight loss cause d by thermal degradation decreased by increasing the nitrogen content and i t has the following order: cellulose > cyanoethyl cellulose > grafted cellu lose > grafted cyanoethyl cellulose. The activation energy had the followin g order: cellulose > grafted cellulose > cyanoethyl cellulose > > grafted c yanoethyl cellulose. (C) 1999 Elsevier Science Ltd. All rights reserved.