Rheological properties for concentrated solution of chitosan-dependence of solvents

Acta Chimica Sinica ›› 1994, Vol. 52 ›› Issue (3): 243-247. Previous Articles Next Articles

Original Articles

壳聚糖浓溶液流变学性质研究-溶剂性质的依赖性

王伟;徐德时

中国科学院长春应用化学研究所;中国科学院高分子物理开放实验室

发布日期:1994-03-15

Rheological properties for concentrated solution of chitosan-dependence of solvents

WANG WEI;XU DESHI

Published:1994-03-15

Abstract

Rheol. properties of concentrated solution of chitosan were investigated in different solvents, such as HCOOH, CH3OOOH, HCl and 0.2 mol譫m-3 CH3COOH + 0.1 mol譫m-3 CH3COONa aqueous solns. It was shown that viscosities and flow behavior of the solns. of chitosan were dependent on the kinds of acids and the pH value of solvents. The exponent of concentration a in viscosity-concn. power law, h0 = K譪a, increased with increasing pH value, and it was significantly higher in 0.2 mol譫m-3 CH3COOH + 0.1 mol譫m-3 CH3COONa, because the solvent changed from good to poor. In addition, the stability of rheol. properties was studied.

Key words: SOLVENTS, RHEOLOGICAL PROPERTY, CHITOSAN, PH VALUE

CLC Number:

O631.2

Cite this article

WANG WEI;XU DESHI. Rheological properties for concentrated solution of chitosan-dependence of solvents[J]. Acta Chimica Sinica, 1994, 52(3): 243-247.

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壳聚糖浓溶液流变学性质研究-溶剂性质的依赖性

Rheological properties for concentrated solution of chitosan-dependence of solvents

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