Chitin is an abundant natural nitrogen-containing biopolymer with great application potential in materials,environment,energy,and health.However,the structure characteristics and processing technologies have required ...Chitin is an abundant natural nitrogen-containing biopolymer with great application potential in materials,environment,energy,and health.However,the structure characteristics and processing technologies have required intense research in related applications.In particular,there have been great efforts to developing solvents for chitin,and the results s0 far are quite encouraging.This review summarizes the main solvent systems used for chitin,namely the aqueous solvent systems(mineral acids,inorganic salt aqueous solutions,alkali aqueous solutions)and non aqueous ones(LiCl-dimethylacetamide solvents,CaCl22H2O saturated methanol,ionic liquids,deep eutectic solvents,and protic organic solvents).The solvent properties,dissolution methods,and solution properties are discussed in detail.Special attention is paid to the dissolution mechanism in each system.This review can provide a reference for understanding the dissolution behavior of chitin and finding suitable solvents for it.展开更多
基金This work was financially supported by the National Natural Science Foundation of China(No.21875170)The authors thank to the facility support of the Special Fund for the Development of Strategic Emerging Industries of Shenzhen City of China(Nos.JCYJ20180507184711069 and JCYJ20170818112409808)+1 种基金Fundamental Research Funds for the Central Universities(No.2042019kf0276)Wuhan Morning Light Plan of Youth Science and Technology(No.2017050304010312).
文摘Chitin is an abundant natural nitrogen-containing biopolymer with great application potential in materials,environment,energy,and health.However,the structure characteristics and processing technologies have required intense research in related applications.In particular,there have been great efforts to developing solvents for chitin,and the results s0 far are quite encouraging.This review summarizes the main solvent systems used for chitin,namely the aqueous solvent systems(mineral acids,inorganic salt aqueous solutions,alkali aqueous solutions)and non aqueous ones(LiCl-dimethylacetamide solvents,CaCl22H2O saturated methanol,ionic liquids,deep eutectic solvents,and protic organic solvents).The solvent properties,dissolution methods,and solution properties are discussed in detail.Special attention is paid to the dissolution mechanism in each system.This review can provide a reference for understanding the dissolution behavior of chitin and finding suitable solvents for it.
