Preparation of regenerated wool keratin films from wool keratin–ionic liquid solutions

Authors

  • Rong Li,

    Corresponding author
    1. National Engineering Research Center for Dyeing and Finishing of Textiles, Donghua University, Shanghai 201620, People's Republic of China
    • National Engineering Research Center for Dyeing and Finishing of Textiles, Donghua University, Shanghai 201620, People's Republic of China
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  • Dong Wang

    1. National Engineering Research Center for Dyeing and Finishing of Textiles, Donghua University, Shanghai 201620, People's Republic of China
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Abstract

The regenerated wool keratin films were prepared from the wool keratin/ionic liquid solutions through water, methanol and ethanol as coagulation solvents in this article. It could be suggested from the results that [AMIM]+·Cl ionic liquid has higher solubility for wool keratin fibers than [BMIM]+·Cl ionic liquid. IR data showed the part of the disulfide bonds was broken during the dissolution. It could be seen from XRD data that the regenerated films exhibited a β-sheet structure and the disappearance of the α-helix structure. TGA curves indicated that the thermal stability of regenerated wool keratin films decreased slightly compared to nature wool fibers. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

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