Influence of biodegradation in thermophilic anaerobic aqueous conditions on crystallization of poly(butylene succinate)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F15%3A43873002" target="_blank" >RIV/70883521:28110/15:43873002 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.polymertesting.2015.08.006" target="_blank" >http://dx.doi.org/10.1016/j.polymertesting.2015.08.006</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.polymertesting.2015.08.006" target="_blank" >10.1016/j.polymertesting.2015.08.006</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of biodegradation in thermophilic anaerobic aqueous conditions on crystallization of poly(butylene succinate)

Popis výsledku v původním jazyce

This work investigates the biodegradation of poly(butylene succinate) (PBS) in an environment of thermophilic (55oC) and mesophilic (37oC) anaerobic sludge. The thermophilic anaerobic sludge was prepared in a laboratory from mesophilic sludge sourced from a municipal waste water treatment plant and placed under thermophilic conditions. It was confirmed that PBS failed to decompose under mesophilic anaerobic conditions (2 wt. %), while the degree of biodegradation achieved under thermophilic conditions reached 24.8 wt. %. Abiotic hydrolysis of PBS in an environment of phosphate buffer (pH = 7) at 55oC reached 17.8%, leading to the conclusion that hydrolytic enzymes present in thermophilic anaerobic sludge are involved in the biodegradation process as well as abiotic hydrolysis. Nonisothermal crystallization kinetics of PBS before and after biodegradation was investigated by differential scanning calorimetry (DSC). After biodegradation, a large shift in melting temperature T<inf>m</inf>

Název v anglickém jazyce

Influence of biodegradation in thermophilic anaerobic aqueous conditions on crystallization of poly(butylene succinate)

Popis výsledku anglicky

This work investigates the biodegradation of poly(butylene succinate) (PBS) in an environment of thermophilic (55oC) and mesophilic (37oC) anaerobic sludge. The thermophilic anaerobic sludge was prepared in a laboratory from mesophilic sludge sourced from a municipal waste water treatment plant and placed under thermophilic conditions. It was confirmed that PBS failed to decompose under mesophilic anaerobic conditions (2 wt. %), while the degree of biodegradation achieved under thermophilic conditions reached 24.8 wt. %. Abiotic hydrolysis of PBS in an environment of phosphate buffer (pH = 7) at 55oC reached 17.8%, leading to the conclusion that hydrolytic enzymes present in thermophilic anaerobic sludge are involved in the biodegradation process as well as abiotic hydrolysis. Nonisothermal crystallization kinetics of PBS before and after biodegradation was investigated by differential scanning calorimetry (DSC). After biodegradation, a large shift in melting temperature T<inf>m</inf>

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Polymer Testing

ISSN

0142-9418

e-ISSN

—

Svazek periodika

47

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

59-70

Kód UT WoS článku

000362859000010

EID výsledku v databázi Scopus

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