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Highly Efficient Dissolution of Wool Keratin by Dimethylphosphate Ionic Liquids
Zheng, Shuangshuang1,2,3; Nie, Yi3; Zhang, Suojiang3; Zhang, Xiangping3; Wang, Lijun4
Source PublicationACS Sustainable Chemistry & Engineering
AbstractIonic liquids (ILs) are eco-friendly solvents and exhibit excellent performance for dissolution and regeneration of wool keratin. In this work, a series of ILs are designed and synthesized to investigate effects of IL structures on dissolving wool keratin and properties of regenerated keratin. The results show that both cations and anions have important effects on dissolution capability for wool, while side chain lengths of imidazole cation have little effect. Structures and properties of regenerated keratin are characterized by various techniques such as Fourier transform infrared spectroscopy, nuclear magnetic resonance spectroscopy, scanning electron microscopy, thermogravimetric analysis, and X-ray diffraction. It is found that the dissolution time is shortened to 1.5 h by [Emim]DMP, the thermal stability of regenerated keratin from its solution is superior to that from the [Bmim]OAc solution, and the proportion of a-helical structure is as high as 78.7%. In addition, five cycles of [Emim]DIMP suggest that it has a good reusability, and the rheological property of DPIL solutions shows their excellent potential for fiber spinning.
KeywordKeratin Ionic Liquids Dimethylphosphate Dissolution Capability
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
Indexed BySCI
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Multidisciplinary ; Engineering, Chemical
Funding Organization973 Program(2015CB251403) ; National Natural Science Foundation of China(21576262 ; External Cooperation Program of BIC, Chinese Academy of Sciences(GJHZ201306) ; 21210006)
WOS IDWOS:000364358500038
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Cited Times:30[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
4.Qufu Normal Univ, Coll Chem & Chem Engn, Jining 273165, Shandong, Peoples R China
Recommended Citation
GB/T 7714
Zheng, Shuangshuang,Nie, Yi,Zhang, Suojiang,et al. Highly Efficient Dissolution of Wool Keratin by Dimethylphosphate Ionic Liquids[J]. ACS Sustainable Chemistry & Engineering,2015,3(11):2925-2932.
APA Zheng, Shuangshuang,Nie, Yi,Zhang, Suojiang,Zhang, Xiangping,&Wang, Lijun.(2015).Highly Efficient Dissolution of Wool Keratin by Dimethylphosphate Ionic Liquids.ACS Sustainable Chemistry & Engineering,3(11),2925-2932.
MLA Zheng, Shuangshuang,et al."Highly Efficient Dissolution of Wool Keratin by Dimethylphosphate Ionic Liquids".ACS Sustainable Chemistry & Engineering 3.11(2015):2925-2932.
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