Influence of acetic acid concentration on the solubilization of chitosan

被引：588

作者：

Rinaudo, M ^{[1
]}

Pavlov, G ^{[1
]}

Desbrières, J ^{[1
]}

机构：

[1] Univ Grenoble 1, CNRS, F-38041 Grenoble 9, France

来源：

POLYMER | 1999年 / 40卷 / 25期

关键词：

chitosan solubilization; protonation; pK(o);

D O I：

10.1016/S0032-3861(99)00056-7

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

This article concerns the protonation of chitosan in acetic acid aqueous solution with variable concentration. Comparison with HCl is also drawn. Potentiometry allows the determination of the degree of protonation and the pK(o). Conductimetry and viscometry are combined to follow the role of protonation on solubilization of chitosan. Solubilization occurs for a degree of protonation around 0.5 as previously found for HCl. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：7029 / 7032

页数：4

共 4 条

[1]

PH AND CD MEASUREMENTS ON A FULLY DEACETYLATED CHITOSAN - APPLICATION TO CU-II-POLYMER INTERACTIONS [J].