Cellulose Dissolution in Ionic Liquid under Mild Conditions: Effect of Hydrolysis and Temperature
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. H2SO4 Hydrolysis
2.3. Material Characterization
2.3.1. Gel Permeation Chromatography (GPC)
2.3.2. Fourier Transform Infrared Spectroscopy (FTIR)
2.3.3. X-ray Diffraction (XRD)
2.3.4. Thermogravimetric Analysis (TGA)
2.4. Dissolution of Hydrolyzed Cotton Cellulose
2.5. Monitoring the Dissolution of Hydrolyzed Cotton Cellulose in BMIMAc/DMAc
2.6. Rheological Study
3. Results and Discussion
3.1. Effect of H2SO4 Hydrolysis on the MW of Cotton Cellulose
3.2. FTIR Characterization of Hydrolyzed Cotton Samples
3.3. XRD Characterization
3.4. Dissolution of Hydrolyzed Cotton Cellulose over Time at Ambient Conditions
3.5. Rheological Behavior of Hydrolyzed Cotton Solutions in BMIMAc/DMAc
3.6. Dissolution of Hydrolyzed Cotton Cellulose over Time at Increased Temperature
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Sample | Weight Average Molecular Weight (MW), Da | Degree of Polymerization (DP) |
---|---|---|
Cotton | 672,500 25,300 | 4152 156 |
HC-1 | 73,900 4100 | 456 26 |
HC-2 | 73,5004 4200 | 454 26 |
HC-3 | 71,600 2900 | 442 18 |
Sample | Crystallinity Index (C.I.), % |
---|---|
Cotton | 81 |
HC-1 | 85 |
HC-2 | 93 |
HC-3 | 85 |
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Acharya, S.; Hu, Y.; Abidi, N. Cellulose Dissolution in Ionic Liquid under Mild Conditions: Effect of Hydrolysis and Temperature. Fibers 2021, 9, 5. https://doi.org/10.3390/fib9010005
Acharya S, Hu Y, Abidi N. Cellulose Dissolution in Ionic Liquid under Mild Conditions: Effect of Hydrolysis and Temperature. Fibers. 2021; 9(1):5. https://doi.org/10.3390/fib9010005
Chicago/Turabian StyleAcharya, Sanjit, Yang Hu, and Noureddine Abidi. 2021. "Cellulose Dissolution in Ionic Liquid under Mild Conditions: Effect of Hydrolysis and Temperature" Fibers 9, no. 1: 5. https://doi.org/10.3390/fib9010005