✦ LIBER ✦

High-resolution thermogravimetry of cellulose esters

✍ Scribed by Xin-Gui Li

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 189 KB
Volume: 71
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19990124)71:4<573::aid-app8>3.0.co;2-r

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✦ Synopsis

Cellulose dinitrate (CDN), cellulose diacetate (CDA), and cellulose triacetate (CTA) were subjected to high-resolution thermogravimetry (TG) at a variable heating rate in air. The TG curves, the derivative TG curves, the second derivative TG curves, and heating rate curves are discussed. The thermal degradation temperature and kinetic parameters are presented and compared to those obtained with traditional TG at a constant heating rate. The degradation process of the cellulose esters is speculated. Among the three cellulose esters, CDN exhibits the lowest degradation temperature of (213°C) but the largest degradation activation energy of (237-269 kJ/mol).

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