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- Title
A New Generation of Furanic Copolyesters with Enhanced Degradability: Poly(ethylene 2,5-furandicarboxylate)- co-poly(lactic acid) Copolyesters.
- Authors
Matos, Marina; Sousa, Andreia F.; Fonseca, Ana C.; Freire, Carmen S. R.; Coelho, Jorge F. J.; Silvestre, Armando J. D.
- Abstract
2,5-Furandicarboxylic acid is a promising renewable-based monomer essentially used in polymer synthesis to prepare renewable-based counterparts to petrochemical polyesters. In general, they are entirely based on renewable resources and have a myriad of very interesting thermal and mechanical properties; however, this study is the first to tackle their (bio)degradability, a worldwide-demanded property. To address this demand, an entirely new generation of furandicarboxylate-derived copolyesters, based on both poly(ethylene 2,5-furandicarboxylate) (PEF) and poly(lactic acid) (PLA), is developed for the first time. These copolyesters are characterized by several techniques, including attenuated total reflectance-Fourier transform IR (ATR-FTIR), 1H, and 13C NMR spectroscopy, thermogravimetric analysis (TGA), DSC, and X-ray diffraction (XRD), and their degradability behavior is evaluated by water-absorption studies and hydrolytic degradation. They are essentially stiff amorphous polymers possessing high Tgs, e.g., ca. 69 °C for 29% of lactyl units. Importantly, the data show also that they have improved degradability when compared with the PEF homopolyester counterpart.
- Subjects
MONOMERS; POLYMERIZATION research; PETROLEUM chemical research; POLYESTERS; FOURIER transform infrared spectroscopy
- Publication
Macromolecular Chemistry & Physics, 2014, Vol 215, Issue 22, p2175
- ISSN
1022-1352
- Publication type
Article
- DOI
10.1002/macp.201400175