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  Surname Name Title Thesis status   Supervisors Reviewers Type of thesis Date of def. Title
Student Type of thesis - - - - - - - - - -
Item shown in detail Slobodová Includes the selected person into the timetable overlap calculation. Nela Influence of Biodegradation on Crystallization of Poly(butylene succinate-co-adipate) (PBSA) Influence of Biodegradation on Crystallization of Poly(butylene succinate-co-adipate) (PBSA) Thesis finished and defended successfully (DUO).   Svoboda Petr Stoklasa Karel Bachelor's thesis 1686607200000 13.06.2023 Influence of Biodegradation on Crystallization of Poly(butylene succinate-co-adipate) (PBSA) Thesis finished and defended successfully (DUO).
Nela Slobodová Bachelor's thesis 0XX 0XX 0XX 0XX 0XX 0XX 0XX 0XX 0XX 0XX

Thesis info Vliv biodegradace na krystalizaci poly(butylen sukcinátu-co-adipátu) (PBSA)

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Name Slobodová Nela Includes the selected person into the timetable overlap calculation.
Acad. Yr. 2022/2023
Assigning department TUIP
Date of defence Jun 13, 2023
Type of thesis Bachelor's thesis
Thesis status Thesis finished and defended successfully (DUO). Thesis finished and defended successfully (DUO).
Completeness of mandatory entries - All mandatory fields for this Thesis are filled in.
Main topic Vliv biodegradace na krystalizaci poly(butylen sukcinátu-co-adipátu) (PBSA)
Main topic in English Influence of Biodegradation on Crystallization of Poly(butylene succinate-co-adipate) (PBSA)
Title according to student Vliv biodegradace na krystalizaci poly(butylen sukcinátu-co-adipátu) (PBSA)
English title as given by the student Influence of Biodegradation on Crystallization of Poly(butylene succinate-co-adipate) (PBSA)
Parallel name -
Subtitle -
Thesis supervisor Svoboda Petr, prof. Ing. Ph.D.
External examiner Stoklasa Karel, doc. Ing. CSc.
Annotation Cílem této bakalářské práce bylo sledovat vliv biodegradace na krystalizaci poly(butylen sukcinátu-co-adipátu). Po vytvoření osmi fólií PBSA byly vzorky uchovány v půdě po dobu sedmi týdnů, první vzorek sloužil jako srovnávací, a vždy po jednom týdnu byl jeden vzorek vyjmut a analyzován pomocí dvou hlavních metod. První metodou byla diferenciální skenovací kalorimetrie (DSC). Z DSC křivek byly vyhodnoceny teploty tání, teploty krystalizace a teplota skelného přechodu. Pomocí směrnice v inflexním bodě S-křivky podle Kratochvíla, Avramiho parametrů k a n, Nakamurova parametru K byla vyhodnocena kinetika krystalizace. Jako druhá metoda byla použita polarizační světelná mikroskopie, pomocí které byla zjištěna rychlost krystalizace jednotlivých sférolitů. Výsledky sloužily kporovnání dat mezi jednotlivými týdny biodegradace a ke sledování vlivu doby biodegradace na kinetiku krystalizace.
Annotation in English The aim of this bachelor thesis was to investigate the effect of biodegradation on the crystallization of poly(butylene succinate-co-adipate). After the formation of eight PBSA films, the samples were kept in soil for seven weeks, the first sample served as a control sample, and each time after one week, one sample was removed and analyzed using two main methods. The first method was differential scanning calorimetry (DSC). Melting temperatures, crystallization temperatures and glass transition temperatures were evaluated from the DSC curves. The kinetics of crystallization was evaluated using the slope at inflexion point of S-curve according to Kratochvil, Avrami parameters kand n, the Nakamura parameter K. As a second method, polarized optical microscopy (POM) was used to determine the rate of crystallization of individual spherulites. The results were used to compare data among weeks of biodegradation and to monitor the effect of biodegradation time on crystallization kinetics.
Keywords Poly(butylensukcinát-co-adipát), krystalizace, biodegradace, diferenciální skenovací kalorimetrie, světelná polarizační mikroskopie
Keywords in English Poly(butylene succinate-co-adipate), crystallization, biodegradation, differential scanning calorimetry, polarized optical microscopy
Length of the covering note 62
Language CZ
Annotation
Cílem této bakalářské práce bylo sledovat vliv biodegradace na krystalizaci poly(butylen sukcinátu-co-adipátu). Po vytvoření osmi fólií PBSA byly vzorky uchovány v půdě po dobu sedmi týdnů, první vzorek sloužil jako srovnávací, a vždy po jednom týdnu byl jeden vzorek vyjmut a analyzován pomocí dvou hlavních metod. První metodou byla diferenciální skenovací kalorimetrie (DSC). Z DSC křivek byly vyhodnoceny teploty tání, teploty krystalizace a teplota skelného přechodu. Pomocí směrnice v inflexním bodě S-křivky podle Kratochvíla, Avramiho parametrů k a n, Nakamurova parametru K byla vyhodnocena kinetika krystalizace. Jako druhá metoda byla použita polarizační světelná mikroskopie, pomocí které byla zjištěna rychlost krystalizace jednotlivých sférolitů. Výsledky sloužily kporovnání dat mezi jednotlivými týdny biodegradace a ke sledování vlivu doby biodegradace na kinetiku krystalizace.
Annotation in English
The aim of this bachelor thesis was to investigate the effect of biodegradation on the crystallization of poly(butylene succinate-co-adipate). After the formation of eight PBSA films, the samples were kept in soil for seven weeks, the first sample served as a control sample, and each time after one week, one sample was removed and analyzed using two main methods. The first method was differential scanning calorimetry (DSC). Melting temperatures, crystallization temperatures and glass transition temperatures were evaluated from the DSC curves. The kinetics of crystallization was evaluated using the slope at inflexion point of S-curve according to Kratochvil, Avrami parameters kand n, the Nakamura parameter K. As a second method, polarized optical microscopy (POM) was used to determine the rate of crystallization of individual spherulites. The results were used to compare data among weeks of biodegradation and to monitor the effect of biodegradation time on crystallization kinetics.
Keywords
Poly(butylensukcinát-co-adipát), krystalizace, biodegradace, diferenciální skenovací kalorimetrie, světelná polarizační mikroskopie
Keywords in English
Poly(butylene succinate-co-adipate), crystallization, biodegradation, differential scanning calorimetry, polarized optical microscopy
Research Plan 1) Prostudujte literaturu na dané téma.
2) Vylisujte fólie a proveďte biodegradaci v půdě.
3) Změřte kinetiku krystalizace po biodegradaci za pomoci diferenciální skenovací kalorimetrie (DSC) a polarizační světelné mikroskopie.
Research Plan
1) Prostudujte literaturu na dané téma.
2) Vylisujte fólie a proveďte biodegradaci v půdě.
3) Změřte kinetiku krystalizace po biodegradaci za pomoci diferenciální skenovací kalorimetrie (DSC) a polarizační světelné mikroskopie.
Recommended resources [1] Tserki V, Matzinos P, Pavlidou E, Vachliotis D, Panayiotou C. Biodegradable aliphatic polyesters. Part I. Properties and biodegradation of poly(butylene succinate-co-butylene adipate). Polym Degrad Stabil. 2006;91(2):367-376.
[2] Baidurah S, Takada S, Shimizu K, Ishida Y, Yamane T, Ohtani H. Evaluation of biodegradation behavior of poly(butylene succinate-co-butylene adipate) with lowered crystallinity by thermally assisted hydrolysis and methylation-gas chromatography. J Anal Appl Pyrol. 2013;103:73-77.
[3] Jbilou F, Joly C, Galland S, Belard L, Desjardin V, Bayard R, et al. Biodegradation study of plasticised corn flour/poly(butylene succinate-co-butylene adipate) blends. Polym Test. 2013;32(8):1565-1575.
[4] Nicolino MVB, Passos MAO, Branciforti MC. Study of Miscibility, Crystallization, and Biodegradation of Casting Films of Poly(butylene succinate-co-adipate) and Poly(epsilon-Caprolactone) Blends. Macromol Symp. 2019;383(1).
Recommended resources
[1] Tserki V, Matzinos P, Pavlidou E, Vachliotis D, Panayiotou C. Biodegradable aliphatic polyesters. Part I. Properties and biodegradation of poly(butylene succinate-co-butylene adipate). Polym Degrad Stabil. 2006;91(2):367-376.
[2] Baidurah S, Takada S, Shimizu K, Ishida Y, Yamane T, Ohtani H. Evaluation of biodegradation behavior of poly(butylene succinate-co-butylene adipate) with lowered crystallinity by thermally assisted hydrolysis and methylation-gas chromatography. J Anal Appl Pyrol. 2013;103:73-77.
[3] Jbilou F, Joly C, Galland S, Belard L, Desjardin V, Bayard R, et al. Biodegradation study of plasticised corn flour/poly(butylene succinate-co-butylene adipate) blends. Polym Test. 2013;32(8):1565-1575.
[4] Nicolino MVB, Passos MAO, Branciforti MC. Study of Miscibility, Crystallization, and Biodegradation of Casting Films of Poly(butylene succinate-co-adipate) and Poly(epsilon-Caprolactone) Blends. Macromol Symp. 2019;383(1).
Týká se praxe No
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