Study on the Characteristics of Macromolecular Chains of Cellulose in Dilute Solutions

作     者：鲁平 陈自力 田原 刘兆峰 

作者机构：China Textile Univ Shanghai China 

出 版 物：《Journal of China Textile University(English Edition)》 (东华大学学报(英文版))

年 卷 期：1999年第16卷第3期

页      面：21-24页

核心收录：

学科分类：0821[工学-纺织科学与工程] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 082101[工学-纺织工程] 0811[工学-控制科学与工程] 

主　　题：cellulose intrinsic viscosity dilute solutions macromolecular chains . 

摘      要：The characteristics of macromolecular chains of cellulose in dilute solutions are discussed. Viscometry was used for the measurement of the intrinsic viscosity [η] of four cellulose samples, which were respectively dissolved in the solvent Tri-ethylenediamine cadmium hydroxide Cadoxen (Cadoxen), Cupriethylenediamine hydroxide(Cuen), iron sodium tartrate complex(EWNN) and N,N-dimethylacetamide(DMAc)with lithium chloride(LiCI, 9% w/w). The intrinsic viscosity of the four solutions decreased in the following manner:[η]DMAc/LiCl[η]EWNN[η]Cuen[η]Cadoxen. The stability of cellulose (Sample α-cellulose) dissolved in solvents Cuen and EWNN was tested by plotting the intrinsic viscosity vs. time. The values of Huggins constant K_H for the cellulose samples dissolved in solvents Cadoxen,Cuen,EWNN and DMAc/LiCl (9% w/w ) were calculated.