CAS OpenIR
Effects of water content on the dissolution behavior of wool keratin using l-ethyl-3-methylimidazolium dimethylphosphate
Zhang Zhenlei1; Zhang Xiaochun1; Nie Yi1; Wang Hui1; Zheng Shuangshuang2; Zhang Suojiang1
2017
Source PublicationScience China. Chemistry
ISSN1674-7291
Volume60Issue:7Pages:934
AbstractIonic liquids (ILs) are eco-friend and recyclable solvents for dissolution of wool keratin,and water is often used as antisolvent to regenerate keratin from IL solution. To recycle the ILs,removing water is the necessary step. However,complete removal of the water is energy-intensive and costly. The water in ionic liquids would change the physicochemical properties and cluster structures of the IL and further affect its dissolution behavior on keratin. Here,1 -ethyl-3-methylimidazolium dimethylphosphate (EmimDMP) was used for experiments due to its good performance on dissolving keratin. The experimental and simulation results showed that the dissolving capability of EmimDMP was decreased and the interactions between cation and anion became weaker with water concentration increasing. Furthermore,the dissolution time of wool keratin in EmimDMP increased with water content rising. At the same time, the effect of water in ILs on the secondary structure distribution and thermal stability of regenerated keratin was not obvious. In this work,by taking the structures of EmimDMP,keratin dissolution time and properties of the regenerated keratin into consideration, a balanced range of water content in EmimDMP was determined, which could not only reduce recycling cost but also not affect the dissolution behavior of the IL.
Keywordkeratin ionic liquids water recycle
Language英语
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/45060
Collection中国科学院过程工程研究所
Affiliation1.中国科学院过程工程研究所
2.Zhengzhou Institute of Emerging Technology Industries
First Author Affilication中国科学院过程工程研究所
Recommended Citation
GB/T 7714
Zhang Zhenlei,Zhang Xiaochun,Nie Yi,et al. Effects of water content on the dissolution behavior of wool keratin using l-ethyl-3-methylimidazolium dimethylphosphate[J]. Science China. Chemistry,2017,60(7):934.
APA Zhang Zhenlei,Zhang Xiaochun,Nie Yi,Wang Hui,Zheng Shuangshuang,&Zhang Suojiang.(2017).Effects of water content on the dissolution behavior of wool keratin using l-ethyl-3-methylimidazolium dimethylphosphate.Science China. Chemistry,60(7),934.
MLA Zhang Zhenlei,et al."Effects of water content on the dissolution behavior of wool keratin using l-ethyl-3-methylimidazolium dimethylphosphate".Science China. Chemistry 60.7(2017):934.
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