Rheological characteristics of chitin/ionic liquid gels and electrochemical properties of regenerated chitin hydrogels

被引:27
作者
Deng, Lizhi [1 ,2 ]
Zhang, Li-Ming [1 ,2 ]
机构
[1] Sun Yat Sen Univ, Sch Mat Sci & Engn, DSAPM Lab, Guangzhou 510275, Guangdong, Peoples R China
[2] Sun Yat Sen Univ, Sch Mat Sci & Engn, PCFM Lab, Guangzhou 510275, Guangdong, Peoples R China
关键词
Chitin; Ionic liquid; Hydrogel; Polymer electrolyte; Supercapacitor; IONIC LIQUID; CELLULOSE; CHITOSAN;
D O I
10.1016/j.colsurfa.2019.124220
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Chitin, one of the most abundant natural polymers, is easy-accessible, biodegradable, and biocompatible. However, its poor solubility in common solvents limited its applications. In this paper, we used ionic liquid 1-butyl-3-metlimidazolium acetate ([BMIM]Ac) to dissolve chitin, and then prepared the ionic liquid gels and regenerated hydrogels (ionic liquid replaced by 6 M KOH). In particular, the rheological properties were investigated for the ionic liquid gels of chitin, and the application of corresponding regenerated hydrogels as the supercapacitor was explored. It was found that the chain rigidity of chitin and the hydrogen bonds between chitin and [BMIM]Ac affected greatly the rheological behavior of chitin/[BMIM]Ac gels. Moreover, a supercapacitor could be assembled using the regenerated chitin hydrogel as polymer electrolyte, and exhibited a higher capacitance and better cyclic behavior when compared to a commercial membrane.
引用
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页数:5
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