Preparation and characterization of chitosan-based dispersions

被引：29

作者：

Neto, CGD

Fernandes, ALP

Santos, AIB

Morais, WA

Navarro, MVM

Dantas, TNC

Pereira, MR

Fonseca, JLC

机构：

[1] Univ Fed Rio Grande do Norte, Dept Quim, BR-59078970 Natal, RN, Brazil

[2] Univ Fed Rio Grande do Norte, Dept Farm, BR-59010180 Natal, RN, Brazil

来源：

POLYMER INTERNATIONAL | 2005年 / 54卷 / 04期

关键词：

chitosan; particles; zeta potential; controlled release;

D O I：

10.1002/pi.1738

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Complexation of chitosan in aqueous solutions by low molecular weight electrolytes is one of the simplest methods for the preparation of aqueous chitosan dispersions. In this work, the influence of storage time, sulfate concentration, method of preparation and surfactant content on some properties of the resultant chitosan dispersions (turbidity, viscosity and zeta potential) was analyzed. Turbidimetry was adequate to monitor the formation of particles, while viscometry was suitable to monitor changes in the dispersing phase. An analysis of the properties of these systems, mainly in terms of particle-particle and macromolecule-macromolecule interactions was carried out. (C) 2004 Society of Chemical Industry.

引用

收藏

页码：659 / 666

页数：8

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