Glycerin/NaOH Aqueous Solution as a Green Solvent System for Dissolution of Cellulose
Ke Li1, Huiyu Yang1,2, Lang Jiang1
1State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China.
Abstract:
Dissolving cellulose in water-based green solvent systems is highly desired for further industrial applications. The green solvent glycerin-which contains hydrogen-bonding acceptors-was used together with NaOH and water to dissolve cellulose. This mixed aqueous solution of NaOH and glycerin was employed as the new green solvent system for three celluloses with different degree of polymerization. FTIR (Fourier-transform infrared), XRD (X-ray diffractometer) and TGA (thermogravimetric analysis) were used to characterize the difference between cellulose before and after regenerated by HCl. A UbbeloHde viscometer was used to measure the molecule weight of three different kinds of cellulose with the polymerization degree of 550, 600 and 1120. This solvent system is useful to dissolve cellulose with averaged molecule weight up to 2.08 × 105 g/mol.
More Related Videos
07:25Green and Low-cost Production of Thermally Stable and Carboxylated Cellulose Nanocrystals and Nanofibrils Using Highly Recyclable Dicarboxylic Acids
Published on: January 9, 2017
12:34Estimation of Crystalline Cellulose Content of Plant Biomass using the Updegraff Method
Published on: May 15, 2021
