STUDY OF THE STOICHIOMETRIC POLYELECTROLYTE COMPLEX BETWEEN CHITOSAN AND CARBOXYMETHYL CELLULOSE

被引：40

作者：

ARGUELLESMONAL, W

GARCIGA, M

PENICHECOVAS, C

机构：

[1] PHARMACEUT ENTERPRISE,HAVANA,CUBA

[2] UNIV HAVANA,FAC CHEM,HAVANA 10400,CUBA

来源：

POLYMER BULLETIN | 1990年 / 23卷 / 03期

关键词：

Chemical Analysis - Titration - Solutions - Mixing - Spectroscopy; Infrared; -; Thermoanalysis;

D O I：

10.1007/BF01032446

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The polyelectrolyte complex (PEC) between chitosan and carboxymethyl cellulose was studied. Turbidimetric measurements revealed that the amount of stoichiometric PEC increased gradually as the solution of one polyelectrolyte was added to the other; the turbidity of the solution reached a maximum for the stoichiometric ratio of the reacting polyelectrolytes in the mixture. At pH 4,0 the composition of the complex is very near to equimolarity. IR spectra and thermal analysis of the PEC exhibited significant differences from those of the 1:1 mixture of the starting polyelectrolytes. © 1990 Springer-Verlag.

引用

页码：307 / 313

页数：7

共 10 条

[1]

ARGUELLESMONAL W, 1988, MAKROMOL CHEM-RAPID, V9, P693

[2]

CHAVASIT V, 1988, POLYM BULL, V19, P223

[3] POLYELECTROLYTE COMPLEXES OF CHITOSAN WITH SODIUM CARBOXYMETHYLDEXTRAN [J].