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Sustainable and Low Viscous 1-Allyl-3-methylimidazolium Acetate + PEG Solvent for Cellulose Processing

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School of Chemical Engineering & Pharmaceutics, Henan University of Science and Technology, Luoyang 471003, Henan, China
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Author to whom correspondence should be addressed.
Academic Editor: Antonio Pizzi
Polymers 2017, 9(2), 54; https://doi.org/10.3390/polym9020054
Received: 4 January 2017 / Revised: 3 February 2017 / Accepted: 4 February 2017 / Published: 16 February 2017
(This article belongs to the Collection Polysaccharides)
Developing sustainable, low viscous and efficient solvents are always advantageous to the processing/fabricating of cellulose materials in practical applications. To this end, in this work novel solvents were developed; ([Amim][CH3COO]/PEG) by dissolving polyethylene glycol 200 (PEG-200) in 1-allyl-3-methylimidazolium acetate ([Amim][CH3COO]). The solubilities of cellulose in [Amim][CH3COO]/PEG solvents were determined as a function of temperature, and the possible dissolution mechanism of cellulose in [Amim][CH3COO]/PEG solvent was investigated. The novel solvent exhibits outstanding advantages for good dissolution capacity of cellulose, such as low viscosity, negligible vapor pressure, and recycling capability. The [CH3COO] anion and the [Amim]+ cation of [Amim][CH3COO] in [Amim][CH3COO]/PEG-10 are the driving force for cellulose dissolution verified by the 13C NMR spectra. In addition, the regenerated cellulose films from [Amim][CH3COO]/PEG solvent were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), and thermogravimetric analysis (TGA) to estimate their morphologies and structures. View Full-Text
Keywords: [Amim][CH3COO]/PEG solvent; sustainability; cellulose; dissolution mechanism; regenerated cellulose properties [Amim][CH3COO]/PEG solvent; sustainability; cellulose; dissolution mechanism; regenerated cellulose properties
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MDPI and ACS Style

Xu, A.; Li, Q. Sustainable and Low Viscous 1-Allyl-3-methylimidazolium Acetate + PEG Solvent for Cellulose Processing. Polymers 2017, 9, 54.

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