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master's thesis
Utjecaj organski modificiranog montmorilonita Cloisite 25A i litijevog bis(oksalato)borata na strukturu i toplinska svojstva poli(etilen-oksida)
diplomski rad
2022. urn:nbn:hr:167:411886
Skorić, Petra
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

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Skorić, P. (2022). Utjecaj organski modificiranog montmorilonita Cloisite 25A i litijevog bis(oksalato)borata na strukturu i toplinska svojstva poli(etilen-oksida) : diplomski rad (Master's thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:411886

Skorić, Petra. "Utjecaj organski modificiranog montmorilonita Cloisite 25A i litijevog bis(oksalato)borata na strukturu i toplinska svojstva poli(etilen-oksida) : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2022. https://urn.nsk.hr/urn:nbn:hr:167:411886

Skorić, Petra. "Utjecaj organski modificiranog montmorilonita Cloisite 25A i litijevog bis(oksalato)borata na strukturu i toplinska svojstva poli(etilen-oksida) : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2022. https://urn.nsk.hr/urn:nbn:hr:167:411886

Skorić, P. (2022). 'Utjecaj organski modificiranog montmorilonita Cloisite 25A i litijevog bis(oksalato)borata na strukturu i toplinska svojstva poli(etilen-oksida) : diplomski rad', Master's thesis, University of Split, Faculty of Chemistry and Technology, accessed 16 November 2024, https://urn.nsk.hr/urn:nbn:hr:167:411886

Skorić P. Utjecaj organski modificiranog montmorilonita Cloisite 25A i litijevog bis(oksalato)borata na strukturu i toplinska svojstva poli(etilen-oksida) : diplomski rad [Master's thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2022 [cited 2024 November 16] Available at: https://urn.nsk.hr/urn:nbn:hr:167:411886

P. Skorić, "Utjecaj organski modificiranog montmorilonita Cloisite 25A i litijevog bis(oksalato)borata na strukturu i toplinska svojstva poli(etilen-oksida) : diplomski rad", Master's thesis, University of Split, Faculty of Chemistry and Technology, Split, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:167:411886

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Metadata
TitleUtjecaj organski modificiranog montmorilonita Cloisite 25A i litijevog bis(oksalato)borata na strukturu i toplinska svojstva poli(etilen-oksida) : diplomski rad
Title (english)Influence of organically modified montmorilonite Cloisite 25A and lithium bis(oxalato)borate on the structure and thermal properties of poly(ethylene oxide) : master thesis
AuthorPetra Skorić
MentorMatko Erceg (mentor)
Committee memberMiće Jakić (predsjednik povjerenstva)
Committee memberDražan Jozić (član povjerenstva)
Committee memberMatko Erceg (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Engineering and Chemistry)
Split
Defense date and country2022-10-27, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Polimerni nanokompoziti dobiveni su miješanjem poli(etilen-oksida) molekulske mase, M ̅ v =1 000 000 (PEO10) s nanopunilom Cloisite 25A (25A) u masenim omjerima PEO10/25A 90/10, 80/20, 70/30, 60/40, 50/50 i 40/60 metodom interkalacije iz taljevine. Polimerni nanokompozitni elektroliti dobiveni su miješanjem PEO10 s 25A u navedenim omjerima uz dodatak soli litijevog bis(oksalato)borata (LiBOB) u količini da se zadovolji omjer 1:8 (Li : kisik iz PEO10) također metodom interkalacije iz taljevine. Primjenom diferencijalne pretražne kalorimetrije (DSC) ispitivan je utjecaj dodatka nanopunila 25A i utjecaj dodatka soli LiBOB na toplinske prijelaze i kristalnost PEO10 u PEO10/25A i PEO10/25A/LiBOB uzorcima. Utvrđeno je da dodatak nanopunila 25A značajnije ne utječe na staklište, ali snižava kristalnost PEO10. Dodatak soli LiBOB u potpunosti narušava kristalnu strukturu PEO10. Primjenom termogravimetrijske analize (TGA) ispitivana je toplinska postojanost i utjecaj dodatka 25A i utjecaj dodatka soli LiBOB na toplinsku razgradnju PEO10 u PEO10/25A i PEO10/25A/LiBOB uzorcima. Utvrđeno je da se dodatkom nanopunila 25A snižava toplinska postojanost PEO10, a dodatak soli LiBOB na nju neznatno utječe. Primjenom infracrvene spektroskopije s Fourierovom transformacijom (FT-IR) ispitivan je utjecaj 25A i utjecaj dodatka soli LiBOB na strukturu PEO10 u PEO10/25A i PEO10/25A/LiBOB uzorcima. Dodatak 25A i soli LiBOB utječu na konformaciju PEO10, uz izraženiji utjecaj soli LiBOB.
Abstract (english)
Polymer nanocomposites were obtained by mixing poly(ethylene oxide) of molecular weight M ̅ v =1 000 000 (PEO10) with Cloisite 25A (25A) nanofiller in weight ratios PEO10/25A 90/10, 80/20, 70/30, 60/40, 50/50 and 40/60 by the melt intercalation method. Polymer nanocomposite electrolytes were obtained by mixing PEO10 with 25A in the indicated ratios with the addition of lithium bis (oxalate) borate (LiBOB) salt in an amount to meet the 1: 8 ratio (Li: oxygen from PEO10) also by melt intercalation method. Using differential scanning calorimetry (DSC), the effect of nanofiller 25A addition and the effect of LiBOB salt addition on thermal transitions and PEO10 crystallinity in PEO10/25A and PEO10/25A/LiBOB samples were investigated. It was found that the addition of 25A does not significantly affect glass transition but lowers degree of crystallinity of PEO10. Addition of LiBOB salt completely disrupts the crystal structure of PEO10. Thermogravimetric analysis (TGA) was used to investigate the thermal stability and the effect of additive 25A and the effect of the addition of LiBOB salt on the thermal decomposition of PEO10 in PEO10/25A and PEO10/25A/LiBOB samples. Nanofiller 25A was found to reduce the thermal stability of PEO10, and the addition of LiBOB salt slightly affected it. Using Fourier transform infrared spectroscopy (FT-IR), the effect of 25A and the effect of the addition of LiBOB salt on the structure of PEO10 in PEO10/25A and PEO10/25A/LiBOB samples were investigated. 25A nanofiller and LiBOB salts affect the PEO10 conformation, with a more pronounced influence of LiBOB salts.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:411886
Study programmeTitle: Chemical Technology; specializations in: Materials, Environmental Protection, Mediteranean Cultures, Materials and Environmental protection
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
Terms of useLicence In copyright icon
Created on2022-12-09 08:07:30