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Article

Process Development for Flexible Films of Industrial Cellulose Pulp Using Superbase Ionic Liquids

Centre for Mechanical Engineering, Materials and Processes (CEMMPRE), Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima-Polo II, 3030-790 Coimbra, Portugal
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Author to whom correspondence should be addressed.
These two authors contributed equally.
Academic Editor: Antonio Pizzi
Polymers 2021, 13(11), 1767; https://doi.org/10.3390/polym13111767
Received: 26 April 2021 / Revised: 21 May 2021 / Accepted: 24 May 2021 / Published: 28 May 2021
Due to environmental concerns, more attention has been given to the development of bio-based materials for substitution of fossil-based ones. Moreover, paper use is essential in daily routine and several applications of industrial pulp can be developed. In this study, transparent films were produced by industrial cellulose pulp solubilization in tetramethylguanidine based ionic liquids followed by its regeneration. Films were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), UV/Vis spectroscopy, proton nuclear magnetic resonance (1H-NMR), dynamic scanning calorimetry (DSC), thermal analysis (TG), and X-ray diffraction (XRD). Mechanical tests showed that films have a good elongation property, up to 50%, depending on ionic liquid incorporation. The influence of the conjugated acid and dissolution temperature on mechanical properties were evaluated. These results revealed the potential of this methodology for the preparation of new biobased films. View Full-Text
Keywords: industrial pulp; cellulose films; superbase ionic liquids; IL quantification; mechanical properties industrial pulp; cellulose films; superbase ionic liquids; IL quantification; mechanical properties
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MDPI and ACS Style

Ribeiro, D.C.M.; Rebelo, R.C.; De Bon, F.; Coelho, J.F.J.; Serra, A.C. Process Development for Flexible Films of Industrial Cellulose Pulp Using Superbase Ionic Liquids. Polymers 2021, 13, 1767. https://doi.org/10.3390/polym13111767

AMA Style

Ribeiro DCM, Rebelo RC, De Bon F, Coelho JFJ, Serra AC. Process Development for Flexible Films of Industrial Cellulose Pulp Using Superbase Ionic Liquids. Polymers. 2021; 13(11):1767. https://doi.org/10.3390/polym13111767

Chicago/Turabian Style

Ribeiro, Diana C.M., Rafael C. Rebelo, Francesco De Bon, Jorge F.J. Coelho, and Arménio C. Serra. 2021. "Process Development for Flexible Films of Industrial Cellulose Pulp Using Superbase Ionic Liquids" Polymers 13, no. 11: 1767. https://doi.org/10.3390/polym13111767

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