Comparison of chitosan/starch composite film properties before and after cross-linking

被引：72
|
作者：
Li, Haihong [1 ]
Gao, Xiaochen [1 ]
Wang, Yan [1 ]
Zhang, Xiaobo [1 ]
Tong, Zhiwei [1 ]
机构：
[1] Huaihai Inst Technol, Sch Chem Engn, Lianyungang 222005, Jiangsu, Peoples R China
来源：
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2013年 / 52卷
关键词：
Chitosan; Starch; Film; Cross-linking; Glutaraldehyde; BLEND FILMS; MECHANICAL-PROPERTIES; BIODEGRADABLE FILM; GLUTARALDEHYDE; COMPATIBILITY;
D O I：
10.1016/j.ijbiomac.2012.10.016
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Unmodified and cross-linked chitosan/starch composite films were prepared using the solvent evaporation method. The properties of the films were studied to obtain useful information about the possible applications of composite films. FT-IR, SEM, and swelling property investigations show that the cross-linking agent glutaraldehyde reacts in the chitosan and starch blend. The compatibility of chitosan and starch blends before and after cross-linking was studied by UV-vis spectroscopy. The compatibility of the blends deteriorated after cross-linking. This finding was confirmed by the results of mechanical properties. The films show improved water barrier performance after cross-linking. The use of trace concentrations of glutaraldehyde in chitosan/starch films allows for possible application in the biomedical field. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：275 / 279
页数：5
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