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https://hdl.handle.net/10316/105385
Title: | Process Development for Flexible Films of Industrial Cellulose Pulp Using Superbase Ionic Liquids | Authors: | Ribeiro, Diana C. M. Rebelo, Rafael C. De Bon, Francesco Coelho, Jorge F. J. Serra, Arménio C. |
Keywords: | industrial pulp; cellulose films; superbase ionic liquids; IL quantification; mechanical properties | Issue Date: | 2021 | Publisher: | MDPI | Project: | POCI-01-0145-FEDER-029742 UIDB/00285/2020 UIBD/00511/2020 |
Serial title, monograph or event: | Polymers | Volume: | 13 | Issue: | 11 | Abstract: | 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. | URI: | https://hdl.handle.net/10316/105385 | ISSN: | 2073-4360 | DOI: | 10.3390/polym13111767 | Rights: | openAccess |
Appears in Collections: | I&D CEMMPRE - Artigos em Revistas Internacionais |
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Process-development-for-flexible-films-of-industrial-cellulose-pulp-using-superbase-ionic-liquidsPolymers.pdf | 3.29 MB | Adobe PDF | View/Open |
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