The properties of enzyme-hydrolyzed cellulose in aqueous sodium hydroxide.
Pure natural cellulose (softwood pulp) modified with cellulase is allowed to react with sodium hydroxide in a muller, and changes in structure and properties are investigated by FTIR and DSC. The reactivity of cellulose for some dissolving and derivatization processes is shown to be improved by an enzymatic hydrolysis and admixture with sodium hydroxide. The modified cellulose dissolved at 9% (wt) sodium hydroxide at -10 degrees C at 6% pulp consistency, while the DP of cellulose is >350.
School of Chemical Engineering and Materials Science, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, PR China.
Yu
Y
Cao
Huimin
H
Tan
D001203:Ascomycota / Q000201:enzymology; D002152:Calorimetry, Differential Scanning; D002480:Cellulase / Q000737:chemistry / Q000378:metabolism*; D002482:Cellulose / Q000737:chemistry* / Q000378:metabolism; D006868:Hydrolysis; D012972:Sodium Hydroxide / Q000737:chemistry*; D012995:Solubility; D017550:Spectroscopy, Fourier Transform Infrared; D014867:Water / Q000737:chemistry*; D014934:Wood
D014867:Water; D012972:Sodium Hydroxide; D002482:Cellulose; D002480:Cellulase