PVP based materials: Biodegradation in different environments
| Autor: | Ludmila Vanharova, Markéta Julinová, Roman Slavík |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Polluted soils
Environmental Engineering 02 engineering and technology macromolecular substances 010402 general chemistry polyvinylpyrrolidone 01 natural sciences biodegradation soil chemistry.chemical_compound Polylactic acid medicine Environmental Chemistry Microbial biodegradation polylactic acid Polyvinylpyrrolidone technology industry and agriculture Biodegradation digested sludge 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry Chemical engineering activated sludge water lipids (amino acids peptides and proteins) 0210 nano-technology medicine.drug |
| Zdroj: | Ecological Chemistry and Engineering S-Chemia i inzynieria ekologiczna S |
| Popis: | The research deals with biodegradation of films prepared from polyvinylpyrrolidone and polylactic acid (PVP/PLA). Biodegradation of PVP/PLA films was supported by the following additives: 1-methyl-2-pyrrolidone, 1-octyl-2-pyrrolidone, acrylamide and N-acetyl-L-phenylalanine according to the previous study. The films were prepared by a solvent casting technique. Biodegradation was observed using the respirometric method in different environments. The films subjected to biodegradation were analyzed by scanning electron microscopy and Fourier transform infrared spectroscopy. It was found that the films are substantially degraded, but not in the biological way; PVP was quickly removed in presence of water because of its easy solubility. In contrast, this fact could support biodegradation of PLA, which becomes more available for microorganisms when PVP leaves PLA matrix. © 2017 by Marketa Julinova. Tomas Bata University in Zlin [IGA/FT/2017/003]; projects of Ministry of Education, Youth, and Sports of the Czech Republic within the NPU I program [LO1504] |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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