期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 5, 期 9, 页码 1842-1847出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b212665f
关键词
-
In this study the influence of temperature and water on the dissolution of cellulose in the solvent system LiCl/ DMAc is examined. The phase diagrams performed in the system without water show that higher amounts of cellulose can be dissolved at 5 degreesC, whereas at 25 degreesC smaller concentrations of LiCl in DMAc are sufficient to solubilize some cellulose. Furthermore a relation between the concentration of LiCl and the maximum possible water content is established. The analysis shows that the ratio between water and LiCl in the mixture has to be smaller than 2: 1. Otherwise complete dissolution of cellulose cannot be achieved. The relation between LiCl and anhydroglucose unit is examined as well. The results imply the breakdown of two hydrogen bonds during the solution process because the interaction of two LiCl/ DMAc complexes with one glucose unit is required. The viscosity of the system is investigated also but no special behavior is observed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据