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master's thesis
Priprema i karakterizacija mješavina polilaktidna kiselina/poli(etilen-oksid)
doplomski rad
2019. urn:nbn:hr:167:532398
Slatina, Tina
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

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Slatina, T. (2019). Priprema i karakterizacija mješavina polilaktidna kiselina/poli(etilen-oksid) : doplomski rad (Master's thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:532398

Slatina, Tina. "Priprema i karakterizacija mješavina polilaktidna kiselina/poli(etilen-oksid) : doplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:167:532398

Slatina, Tina. "Priprema i karakterizacija mješavina polilaktidna kiselina/poli(etilen-oksid) : doplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:167:532398

Slatina, T. (2019). 'Priprema i karakterizacija mješavina polilaktidna kiselina/poli(etilen-oksid) : doplomski rad', Master's thesis, University of Split, Faculty of Chemistry and Technology, accessed 16 November 2024, https://urn.nsk.hr/urn:nbn:hr:167:532398

Slatina T. Priprema i karakterizacija mješavina polilaktidna kiselina/poli(etilen-oksid) : doplomski rad [Master's thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2019 [cited 2024 November 16] Available at: https://urn.nsk.hr/urn:nbn:hr:167:532398

T. Slatina, "Priprema i karakterizacija mješavina polilaktidna kiselina/poli(etilen-oksid) : doplomski rad", Master's thesis, University of Split, Faculty of Chemistry and Technology, Split, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:167:532398

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Metadata
TitlePriprema i karakterizacija mješavina polilaktidna kiselina/poli(etilen-oksid) : doplomski rad
Title (english)Preparation and characterization of polylactid acid/poly(ethylene-oxide) blends : diploma thesis
AuthorTina Slatina
MentorMiće Jakić (mentor)
MBZ: 303245
Committee memberMario Nikola Mužek (predsjednik povjerenstva)
Committee memberSanja Perinović Jozić (član povjerenstva)
Committee memberMiće Jakić (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Engineering and Chemistry)
Split
Defense date and country2019-10-30, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Svrha ovog rada bila je pripremiti uzorke mješavina PLA/PEO te utvrditi mješljivost temeljem istraživanja interakcija PLA-a s PEO-om u mješavinama različitih sastava. Mješavine PLA/PEO različitih sastava pripremljene su na laboratorijskom ekstruderu pri čemu tijekom ekstrudiranja nije došlo do toplinske razgradnje. Diferencijalna pretražna kalorimetrija, DSC, primijenjena je za određivanje karakterističnih prijelaza čistih polimera i njihovih mješavina, s ciljem utvrđivanja mješljivosti komponenata u mješavini. Staklište PLA, kao kriterij za procjenu mješljivosti, nije bilo moguće odrediti zbog preklapanja s endotermnim pikom taljenja PEO-a. Stoga su tališta čistih polimera promatrana kao kriterij mješljivosti. Na temelju dobivenih rezultata može se zaključiti da su mješavine PLA/PEO djelomično mješljive, odnosno samo pri većem udjelu jedne (80/20) ili druge komponente u mješavini (20/80). Primjenom infracrvene spektroskopije s Fourierovom transformacijom, FTIR, potvrđeno je postojanje interakcija u mješavinama PLA/PEO. Najznačajniji pomaci karakterističnih vrpci uočeni su samo u mješavinama s većim udjelom jedne (80/20) ili druge komponente u mješavini (20/80).
Abstract (english)
The purpose of this study was to prepare PLA/PEO blends and determine miscibility based on PLA interaction with PEO in blends of different composition. Blends of PLA/PEO of different compositions were prepared on the laboratory extruder without thermal degradation. Differential scanning calorimetry, DSC, was applied to determine the characteristic transitions of pure polymers and their blends in order to determine the miscibility of the components in the blend. Evaluation of miscibility with glass transition metod could not be applied to the PLA/PEO blend because the melting endothermic of PEO and the glass transition of PLA, T g of PLA, were overlapped. In these cases, the melting temperature, T m depression method can be used. From these results it can be concluded that PLA/PEO blends are partially miscible, or only in the higher proportion of one (80/20) or other component in the blend (20/80). Infrared Fourier transform spectroscopy, FTIR, confirmed the existence of interactions in the PLA/PEO blends. The most significant shifts of characteristic bands were observed only in blends with a higher proportion of one (80/20) or other component in the blend (20/80).
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:532398
Study programmeTitle: Chemical Technology; specializations in: Materials, Environmental Protection, Mediteranean Cultures
Course: Materials
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka kemijskog inženjerstva (magistar/magistra inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2019-11-21 13:00:48