VISCOSITY AND FLOW PROPERTIES OF CONCENTRATED-SOLUTIONS OF CHITOSAN WITH DIFFERENT DEGREES OF DEACETYLATION

被引：78

作者：

WANG, W

XU, DS

机构：

[1] Polymer Physics Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 1994年 / 16卷 / 03期

关键词：

CHITOSAN; DEGREE OF DEACETYLATION; VISCOSITY; FLOW PROPERTIES;

D O I：

10.1016/0141-8130(94)90042-6

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The effects of the degree of deacetylation (DD) on the viscosity and flow behaviour of concentrated solutions of chitosan were investigated using 0.2 M CH3COOH and 0.2 M CH3COOH/0.1 M CH3COONa aqueous solutions as solvents. The results indicated that the viscosity and flow properties of the solutions differed with the DD of chitosan. The solution viscosities and the non-Newtonian flow properties as well as the flow activation energies E(gamma) increased with the increasing DD of chitosan. However, the additional salt decreased the viscosities and the non-Newtonian flow properties of the solutions of chitosan, but did not change the flow activation energies E(gamma) of the solutions.

引用

页码：149 / 152

页数：4

共 12 条

[1] STUDIES ON CHITOSAN .2. SOLUTION STABILITY AND REACTIVITY OF PARTIALLY N-ACETYLATED CHITOSAN DERIVATIVES IN AQUEOUS-MEDIA [J].