Study on the heterogeneous degradation of chitosan with hydrogen peroxide under the catalysis of phosphotungstic acid

被引：57

作者：

Huang, Qun Zeng ^{[1
]}

Wang, Shi Ming

Huang, Jin Feng

Zhuo, Li Hong

Guo, Ying Chen

机构：

[1] Nanyang Normal Univ, Coll Chem & Pharm Engn, Nanyang, Peoples R China

[2] Fujian Normal Univ, Coll Chem & Mat Sci, Fuzhou, Peoples R China

来源：

CARBOHYDRATE POLYMERS | 2007年 / 68卷 / 04期

关键词：

chitosan; phosphotungstic acid; H2O2; catalysis; degradation;

D O I：

10.1016/j.carbpol.2006.08.015

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The oxidative degradation of chitosan with H2O2 aqueous solution was carried out under the catalysis of phosphotungstic acid in heterogeneous phase. The optimal conditions of degradation were determined by orthogonal tests. The structure of the degraded product was characterized by Fourier-transform infrared spectra (FTIR), diffuse reflectance spectra (DRS) and X-ray diffraction (XRD) analysis. The mechanism of the degradation was correlated with cleavage of the glycosidic bond. The experimental results showed that chitosan can be effectively degraded with H2O2 under the catalysis of phosphotungstic acid. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：761 / 765

页数：5