Biodegradation of Poly-ε-caprolactones and Poly-l-lactides by Fungi
| Autor: | Sergey V. Kostyuk, A. N. Klyamkina, A. G. Kozlovsky, A. M. Aladyshev, P. M. Nedorezova, T. V. Antipova, Kirill V. Zaitsev, Anastasiya A. Danilogorskaya, V. P. Zhelifonova |
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| Rok vydání: | 2018 |
| Předmět: |
Fusarium
Environmental Engineering Materials science Polymers and Plastics Dispersity macromolecular substances 02 engineering and technology 010402 general chemistry 01 natural sciences Crystallinity Materials Chemistry Organic chemistry chemistry.chemical_classification biology technology industry and agriculture Polymer respiratory system Biodegradation equipment and supplies 021001 nanoscience & nanotechnology biology.organism_classification 0104 chemical sciences Polymerization chemistry Penicillium Degradation (geology) 0210 nano-technology |
| Zdroj: | Journal of Polymers and the Environment. 26:4350-4359 |
| ISSN: | 1572-8919 1566-2543 |
| DOI: | 10.1007/s10924-018-1307-3 |
| Popis: | This work assessed biodegradation, by Aspergillus, Fusarium, Penicillium and Parengyodontium fungi, of four samples of poly-e-caprolactone (PCL), three samples of poly-l-lactide (PLA) and one sample of poly-d,l-lactide (DL-PLA) produced by ring-opening polymerization initiated by aluminium complexes of corresponding lactones. Mesophilic fungal strains actively biodegrading PCL (F. solani) and PLA (Parengyodontium album and A. calidoustus) were selected. The rate of degradation by the selected fungi was found to depend on the physicochemical and mechanical properties of the polymers (molecular weight, polydispersity, crystallinity). The most degradable poly-e-caprolactone sample was shown to have the lowest molecular weight; the most biodegradable polylactide DL-PLA had the lowest crystallinity. Mass spectral analysis of biodegraded polymer residues showed PCL to be degraded more intensively than PLA. It is established that in the case of Parengyodontium album the colonization of the films of polypropylene composites with DL-PLA is observed, which will undoubtedly contribute to their further destruction under the influence of abiotic factors in the environment. |
| Databáze: | OpenAIRE |
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