Utilize este identificador para referenciar este registo:
http://hdl.handle.net/10773/19642
Título: | A New Generation of Furanic Copolyesters with Enhanced Degradability: Poly(ethylene 2,5-furandicarboxylate)-co-poly(lactic acid) Copolyesters |
Autor: | Matos, Marina Sousa, Andreia F. Fonseca, Ana C. Freire, Carmen S. R. Coelho, Jorge F. J. Silvestre, Armando J. D. |
Palavras-chave: | L-LACTIC ACID ALIPHATIC/AROMATIC COPOLYESTERS TELECHELIC PREPOLYMERS HYDROLYTIC DEGRADATION BIODEGRADABLE POLYMERS RENEWABLE RESOURCES POLYESTERS TEREPHTHALATE COPOLYMERS SUBERIN |
Data: | 2014 |
Editora: | WILEY-V C H VERLAG GMBH |
Resumo: | 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), H-1, and C-13 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 T(g)s, e.g., ca. 69 degrees C for 29% of lactyl units. Importantly, the data show also that they have improved degradability when compared with the PEF homopolyester counterpart. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/19642 |
DOI: | 10.1002/macp.201400175 |
ISSN: | 1022-1352 |
Versão do Editor: | 10.1002/macp.201400175 |
Aparece nas coleções: | CICECO - Artigos |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
A New Generation of Furanic Copolyesters with Enhanced Degradability Poly(ethylene 25-furandicarboxylate)- co-poly(lactic acid) Copolyesters_10.1002macp.201400175.pdf | 1.07 MB | Adobe PDF |
Todos os registos no repositório estão protegidos por leis de copyright, com todos os direitos reservados.