prikaz prve stranice dokumenta Modifikacija poli(etilen-oksid) / montmorilonitnih kompozita u svrhu poboljšanja ionske provodnosti
  Download
PDF 2.02 MB
undergraduate thesis
Modifikacija poli(etilen-oksid) / montmorilonitnih kompozita u svrhu poboljšanja ionske provodnosti
završni rad
2023. urn:nbn:hr:167:286585
Joskić, Petra
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

Cite this document

Joskić, P. (2023). Modifikacija poli(etilen-oksid) / montmorilonitnih kompozita u svrhu poboljšanja ionske provodnosti : završni rad (Undergraduate thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:286585

Joskić, Petra. "Modifikacija poli(etilen-oksid) / montmorilonitnih kompozita u svrhu poboljšanja ionske provodnosti : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2023. https://urn.nsk.hr/urn:nbn:hr:167:286585

Joskić, Petra. "Modifikacija poli(etilen-oksid) / montmorilonitnih kompozita u svrhu poboljšanja ionske provodnosti : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2023. https://urn.nsk.hr/urn:nbn:hr:167:286585

Joskić, P. (2023). 'Modifikacija poli(etilen-oksid) / montmorilonitnih kompozita u svrhu poboljšanja ionske provodnosti : završni rad', Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, accessed 08 December 2024, https://urn.nsk.hr/urn:nbn:hr:167:286585

Joskić P. Modifikacija poli(etilen-oksid) / montmorilonitnih kompozita u svrhu poboljšanja ionske provodnosti : završni rad [Undergraduate thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2023 [cited 2024 December 08] Available at: https://urn.nsk.hr/urn:nbn:hr:167:286585

P. Joskić, "Modifikacija poli(etilen-oksid) / montmorilonitnih kompozita u svrhu poboljšanja ionske provodnosti : završni rad", Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, Split, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:167:286585

Please login to the repository to save this object to your list.
Metadata
TitleModifikacija poli(etilen-oksid) / montmorilonitnih kompozita u svrhu poboljšanja ionske provodnosti : završni rad
Title (english)MOCIFICATION OF POLY (ETHYLENE OXIDE) / MONTMORILLONITE COMPOSITES FOR THE PURPOSE OF IMPROVING IONIC CONDUCTIVITY : bachelor thesis
AuthorPetra Joskić
MentorBranka Andričić (mentor)
Committee memberZoran Grubač (predsjednik povjerenstva)
Committee memberNataša Stipanelov-Vrandečić (član povjerenstva)
Committee memberBranka Andričić (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Engineering and Chemistry)
Split
Defense date and country2023-09-26, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
U ovom radu ispitivan je utjecaj dodatka soli litijevog bis(oksalato)borata (LiBOB) i litijevog montmorilonita (LiMMT) na staklište, talište i kristalnu strukturu poli(etilen-oksida) (PEO10). Tijekom ispitivanja primijenjene su metode diferencijalne pretražna kalorimetrije (DSC) i infracrvene spektroskopije s Fourierovom trnasformacijom (FTIR). LiMMT pripremljen je metodom ionske izmjene iz prirodnog montmorilonita, a polimerni nanokompoziti PEO/LiMMT/LiBOB s molnim omjerima PEO/LiBOB 1/7, 1/9, 1/16, 1/32, 1/40 pripremljeni su metodom interkalacije iz taljevine. Molni udjeli uzoraka predstavljaju omjer litijevog kationa iz LiBOB i kisika iz PEO s ciljem ostvarivanja dovoljne koncentracije litijevih kationa u elektrolitu. U pripremljenim uzorcima maseni udio polimera i punila odnosno PEO i LiMMT je u omjeru 60/40. Metodom diferencijalne pretražne kalorimetrije utvrđeno je da dodatak LiBOB u potpunosti narušava kristalnost uzorka PEO/LiMMT/LiBOB 1/7 i 1/9, a uzorci PEO/LiMMT/LiBOB 1/16, 1/32, 1/40 pokazuju toplinske prijelaze kristalizacije s talištem nižim od tališta čistog PEO. Metodom infracrvene spektroskopije s Fourierovom transformacijom potvrđeno je da dodatak LiMMT-a narušava kristalnost PEO.
Abstract (english)
In this work the influence of the addition of lithium bis(oxalate)borate (LiBOB) salt and lithium montmorillonite (LiMMT) on the glass transition temperature, melting temperature and crystal structure of poly(ethylene oxide) (PEO10) was examined. Differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FTIR) were used to study the material properties. LiMMT was prepared by ion exchange method from natural montmorillonite and polymer nanocomposites PEO/LiMMT/LiBOB, with mole ratios PEO LiBOB 1/7, 1/9, 1/16, 1/32, 1/40, were prepared by intercalation method from the melt. Molar ratios represent the ratio of lithium cation from LiBOB to oxygen from PEO in order to achieve sufficient concentration of lithium cations in the electrolyte. In the prepared samples, the mass ratio of PEO and LiMMT was 60/40. Differential scanning calorimetry show that the addition of LiBOB completely impairs the crystallinity of PEO/LiMMT/LiBOB 1/7 and 1/9 sample, while PEO/LiMMT/LiBOB 1/16, 1/32, 1/40 samples exhibit thermal crystallization transitions with melting temperatuare lower than pure PEO. The Fourier transform infrared spectroscopy confirm that the addition of LiMMT corroborate the crystallinity of PEO
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:286585
Study programmeTitle: Chemical Technology; specializations in: Chemical Engineering, Environmental Protection
Course: Chemical Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2023-12-01 08:21:50