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   Acta Chim. Sinica  2010, Vol. 68  Issue (01) :89-94    DOI:
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   Natural Polymer Electroactive Hydrogel——Soybean Protein/carboxymethylchitosan System
   Guan Juan1 Xu Huixin1 HuangYufang2 Tian Kun1 Shao Zhengzhong1 Chen Xin*,1
   (1 The Key Laboratory of Molecular Engineering of Polymers of the Ministry of Education of China, Department of Macromolecular Science, Laboratory of Advanced Materials, Fudan University, Shanghai 200433)
(2 Department of Material Science, National Microanalysis Center, Fudan University, Shanghai 200433)
 
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GUAN Juan
HU Hui-Xin
HUANG Yu-Fang
TIAN Kun
SHAO Zheng-Zhong
CHEN Xin
Abstract: A natural amphoteric polyelectrolyte hydrogel film was prepared by solution blending of soybean protein (SPI) and carboxymethylchitosan (CMCS), and cross-linked with epichlorohydrin. Under electric stimulus such a hydrogel quickly bends toward one electrode, showing an electrical sensitive behavior. Because of its amphoteric nature, the hydrogel bends either toward the anode (pH<6) or cathode (pH>6), depending on the pH of the electrolyte solution. Besides pH value, other factors, such as electric field strength and thickness of the hydrogel also influence the electromechanical behavior of the hydrogels. Compared with two other natural electroactive hydrogels, i.e., chitosan/carboxymethylcellulose hydrogel and chitosan/carboxymethylchitosan hydrogel reported previously, SPI/CMCS hydrogel exhibits a good electrical sensitivity either at a relative strong acidic condition (pH=3~4) or a neutral condition (pH=7), which widen the application area of the natural electroactive hydrogels.
Keywordsprotein,   polysaccharide,   amphoteric,   smart hydrogel     
Received: 2009-07-21; published: 2010-01-20
Corresponding Authors: CHEN Xin     Email: chenx@fudan.edu.cn
Cite this article:   
GUAN Juan, HU Hui-Xin, HUANG Yu-Fang etc .Natural Polymer Electroactive Hydrogel——Soybean Protein/carboxymethylchitosan System[J]  Acta Chim. Sinica 2010,V68(01): 89-94
URL:  
http://sioc-journal.cn/Jwk_hxxb/EN/     或     http://sioc-journal.cn/Jwk_hxxb/EN/Y2010/V68/I01/89
 
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