Monitoring polymer degradation under different conditions in the marine environment
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http://hdl.handle.net/10045/101208
Títol: | Monitoring polymer degradation under different conditions in the marine environment |
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Autors: | Beltrán Sanahuja, Ana | Casado-Coy, Nuria | Simó Cabrera, Lorena | Sanz-Lázaro, Carlos |
Grups d'investigació o GITE: | Análisis de Alimentos, Química Culinaria y Nutrición (AAQCN) | Biología Marina | Bioquímica Aplicada/Applied Biochemistry (AppBiochem) |
Centre, Departament o Servei: | Universidad de Alicante. Departamento de Química Analítica, Nutrición y Bromatología | Universidad de Alicante. Departamento de Ecología |
Paraules clau: | Plastic degradation | Biobased and biodegradable plastics | Fourier transform infrared spectroscopy | Differential scanning calorimetry | Marine ecosystems |
Àrees de coneixement: | Nutrición y Bromatología | Ecología |
Data de publicació: | d’abril-2020 |
Editor: | Elsevier |
Citació bibliogràfica: | Environmental Pollution. 2020, 259: 113836. doi:10.1016/j.envpol.2019.113836 |
Resum: | The perdurability of plastics in the environment is one of the major concerns of plastic pollution and, as a consequence, oceans are accumulating large amounts of plastic. The degradation of conventional and biobased materials was evaluated through a laboratory experiment for a year simulating four different conditions in the marine environment. The water column environmental compartment was simulated under euphotic and aphotic (with and without light availability) conditions. The seafloor environmental compartment was simulated with sediment under non-polluted and polluted conditions. By combining weight loss (%), spectroscopic and thermal analyses, the degradation patterns regarding the polymer structure were assessed. The studied biobased materials were polylactic acid (PLA) based materials and showed higher degradability than conventional ones. The weight loss of conventional materials was not influenced by the water column or sediment, while in PLA-based materials, the degradation rates were ca. 5 times greater in the sediment than in the water column. The absorbance (Abs) value at 3400 cm−1 for polyethylene terephthalate (PET), and carbonyl (CO) index for PET and PLA could be useful to detect early signs of degradation. The crystallization index could be a useful parameter to discriminate degradation stages. The obtained results highlight the different degradability rates of materials depending on the specific environmental marine conditions. |
Patrocinadors: | This work has been funded by the Spanish Foundation for Science and Technology (FECYT2-19I; PR238). C. S. was funded by the University of Alicante (Ref. UATALENTO 17-11). |
URI: | http://hdl.handle.net/10045/101208 |
ISSN: | 0269-7491 (Print) | 1873-6424 (Online) |
DOI: | 10.1016/j.envpol.2019.113836 |
Idioma: | eng |
Tipus: | info:eu-repo/semantics/article |
Drets: | © 2019 Elsevier Ltd. |
Revisió científica: | si |
Versió de l'editor: | https://doi.org/10.1016/j.envpol.2019.113836 |
Apareix a la col·lecció: | INV - BM - Artículos Científicos / Scientific Papers INV - AAQCN - Artículos de Revistas INV - AppBiochem - Artículos de Revistas |
Arxius per aquest ítem:
Arxiu | Descripció | Tamany | Format | |
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2020_Beltran-Sanahuja_etal_EnvironPollut_final.pdf | Versión final (acceso restringido) | 484,06 kB | Adobe PDF | Obrir Sol·licitar una còpia |
2020_Beltran-Sanahuja_etal_EnvironPollut_accepted.pdf | Accepted Manuscript (acceso abierto) | 2,08 MB | Adobe PDF | Obrir Vista prèvia |
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