The Kinetics of Cellulose Dissolution in Sodium Hydroxide Solution at Low Temperatures

被引：68
作者：
Wang, Ying
Deng, Yulin [1 ]
机构：
[1] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA
来源：
BIOTECHNOLOGY AND BIOENGINEERING | 2009年 / 102卷 / 05期
关键词：
cellulose; dissolution; kinetics; low temperature; SYSTEM; WATER;
D O I：
10.1002/bit.22160
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
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.
引用
收藏
页码：1398 / 1405
页数：8
相关论文
共 24 条
[1]   Novel fibers prepared from cellulose in NaOH/urea aqueous solution [J].
Cai, J ;
Zhang, LN ;
Zhou, JP ;
Li, H ;
Chen, H ;
Jin, HM .
MACROMOLECULAR RAPID COMMUNICATIONS, 2004, 25 (17) :1558-1562
[2]   Solid-liquid phase diagram for ethylene glycol plus water [J].
Cordray, DR ;
Kaplan, LR ;
Woyciesjes, PM ;
Kozak, TF .
FLUID PHASE EQUILIBRIA, 1996, 117 (1-2) :146-152
[3]   Structure of aqueous solutions of microcrystalline cellulose/sodium hydroxide below 0 °C and the limit of cellulose dissolution [J].
Egal, Magali ;
Budtova, Tatiana ;
Navard, Patrick .
BIOMACROMOLECULES, 2007, 8 (07) :2282-2287
[4]   Structure formation of regenerated cellulose materials from NMMO-solutions [J].
Fink, HP ;
Weigel, P ;
Purz, HJ ;
Ganster, J .
PROGRESS IN POLYMER SCIENCE, 2001, 26 (09) :1473-1524
[5]  
Hou T., 1942, MANUFACTURE SODA, V2d
[6]   Dissolution of cellulose in aqueous NaOH solutions [J].
Isogai, A ;
Atalla, RH .
CELLULOSE, 1998, 5 (04) :309-319
[7]   Cellulose: Fascinating biopolymer and sustainable raw material [J].
Klemm, D ;
Heublein, B ;
Fink, HP ;
Bohn, A .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (22) :3358-3393
[8]   Structural changes and activation of cellulose by caustic soda solution with urea [J].
Kunze, J ;
Fink, HP .
MACROMOLECULAR SYMPOSIA, 2005, 223 :175-187
[9]   SOLUBILITY OF CELLULOSE-III IN SODIUM-HYDROXIDE SOLUTION [J].
LASZKIEWICZ, B ;
CUCULO, JA .
JOURNAL OF APPLIED POLYMER SCIENCE, 1993, 50 (01) :27-34
[10]  
Marson GA, 1999, J POLYM SCI POL CHEM, V37, P3738, DOI 10.1002/(SICI)1099-0518(19991001)37:19<3738::AID-POLA11>3.0.CO
123