Biodegradation of waste PET based copolyesters in thermophilic anaerobic sludge
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F15%3A43899718" target="_blank" >RIV/60461373:22310/15:43899718 - isvavai.cz</a>
Alternative codes found
RIV/61388963:_____/15:00443376 RIV/60461373:22320/15:43899718
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S0141391014004236" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0141391014004236</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.polymdegradstab.2014.11.007" target="_blank" >10.1016/j.polymdegradstab.2014.11.007</a>
Alternative languages
Result language
angličtina
Original language name
Biodegradation of waste PET based copolyesters in thermophilic anaerobic sludge
Original language description
A series of poly(ethylene terephthalate-co-lactate) copolyesters with random microstructure was prepared from PETP waste beverage bottles and L-lactic acid. Square specimens, sectioned from melt-pressed film, were incubated in thermophilic sludge (55oC, alkaline environment) for 394 days. The biodegradability of the samples, determined from biogas yield, reached 34-69 % depending on the starting aromatic to aliphatic units' ratio. Water uptake study in sludge and abiotic buffers at 55oC showed sharp border around 57% of aromatic units in copolyester composition between polymers susceptible and resistant to both hydrolytic attack by hydrolases and the abiotic hydrolysis. Samples biodegraded in sludge and those abiotically aged in buffers were characterized by 1H NMR, ATR-FTIR, SEC, DSC, and TGA analysis to gain an insight into the chain scission mechanism. Aromatic oligomers as model of copolyester degradation intermediates were prepared and proved to biodegrade in sludge as well.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CD - Macromolecular chemistry
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Polymer Degradation and Stability
ISSN
0141-3910
e-ISSN
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Volume of the periodical
111
Issue of the periodical within the volume
neuveden
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
9
Pages from-to
176-184
UT code for WoS article
000348949000021
EID of the result in the Scopus database
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