✦ LIBER ✦

The kinetics of cellulose dissolution in sodium hydroxide solution at low temperatures

✍ Scribed by Ying Wang; Yulin Deng

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 533 KB
Volume: 102
Category: Article
ISSN: 0006-3592
DOI: 10.1002/bit.22160

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✦ Synopsis

Abstract

The dissolution kinetics of cellulose in sodium hydroxide in the presence and absence of urea at low temperature was studied. High molecular weight cotton linter with degree of polymerization of 850 was used for dissolution study. The cotton linter was separated from the dissolution slurry at different dissolution times, and the change of the crystal structure of cotton linter was characterized by Powder X‐Ray Diffraction. The rate of decrystallization of cellulose was obtained and the activation energy for cellulose decrystallization in sodium hydroxide solution was derived using Eyring equation. The effect of urea additive was discussed. Biotechnol. Bioeng. 2009;102: 1398–1405. © 2008 Wiley Periodicals, Inc.

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