Modifikacija polimernih elektrolita poli(etilen-oksida) i litijevog bis(oksalato) borata u svrhu poboljšanja ionske provodnosti

Kondža, Ana

prikaz prve stranice dokumenta Modifikacija polimernih elektrolita poli(etilen-oksida) i litijevog bis(oksalato) borata u svrhu poboljšanja ionske provodnosti

undergraduate thesis

Modifikacija polimernih elektrolita poli(etilen-oksida) i litijevog bis(oksalato) borata u svrhu poboljšanja ionske provodnosti

završni rad

2022. urn:nbn:hr:167:684074

Kondža, Ana

University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

Cite this document

APA 6th Edition

Kondža, A. (2022). Modifikacija polimernih elektrolita poli(etilen-oksida) i litijevog bis(oksalato) borata 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:167:684074

MLA 8th Edition

Kondža, Ana. "Modifikacija polimernih elektrolita poli(etilen-oksida) i litijevog bis(oksalato) borata u svrhu poboljšanja ionske provodnosti : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2022. https://urn.nsk.hr/urn:nbn:hr:167:684074

Chicago 17th Edition

Harvard

Kondža, A. (2022). 'Modifikacija polimernih elektrolita poli(etilen-oksida) i litijevog bis(oksalato) borata u svrhu poboljšanja ionske provodnosti : završni rad', Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, accessed 01 November 2024, https://urn.nsk.hr/urn:nbn:hr:167:684074

Vancouver

Kondža A. Modifikacija polimernih elektrolita poli(etilen-oksida) i litijevog bis(oksalato) borata u svrhu poboljšanja ionske provodnosti : završni rad [Undergraduate thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2022 [cited 2024 November 01] Available at: https://urn.nsk.hr/urn:nbn:hr:167:684074

IEEE

A. Kondža, "Modifikacija polimernih elektrolita poli(etilen-oksida) i litijevog bis(oksalato) borata u svrhu poboljšanja ionske provodnosti : završni rad", Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, Split, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:167:684074

Cite this item: https://urn.nsk.hr/urn:nbn:hr:167:684074

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Title	Modifikacija polimernih elektrolita poli(etilen-oksida) i litijevog bis(oksalato) borata u svrhu poboljšanja ionske provodnosti : završni rad
Title (english)	Modification of polymer electrolytes based on poly(ethylen oxide) and lithius bis(oxalato)borate to improve ionic conductivity : bachelor thesis
Author	Ana Kondža
Mentor	Branka Andričić (mentor)
Committee member	Senka Gudić (predsjednik povjerenstva)
Committee member	Nataša Stipanelov-Vrandečić (član povjerenstva)
Committee member	Branka Andričić (član povjerenstva)
Granter	University of Split Faculty of Chemistry and Technology (Division of Engineering and Chemistry) Split
Defense date and country	2022-09-26, Croatia
Scientific / art field, discipline and subdiscipline	TECHNICAL SCIENCES Chemical Engineering
Abstract	Ovaj rad bavi se ispitivanjem utjecaja dodatka litijevog montmorilonita (LiMMT) na toplinske prijelaze (staklište i talište) i kristalnost poli(etilen-oksida). Primijenjene su metode diferencijalne pretražne kalorimetrije (DSC) i infracrvene spektroskopije s Fourierovom transformacijom (FT-IR). LiMMT pripremljen je metodom ionske izmjene iz prirodnog montmorilonita, a polimerni nanokompoziti PEO10/LiMMT/LiBOB s masenim omjerima PEO10/LiMMT 95/5, 90/10, 80/20, 70/30, 60/40 pripremljeni su metodom interkalacije iz taljevine. Sol litijevog bis(oksalato)borata (LiBOB) dodana je u omjeru 1:8 (Li : kisik iz PEO) s ciljem ostvarivanja dovoljne koncentracije nositelja naboja u elektrolitu. Metodom diferencijalne pretražne kalorimetrije (DSC) ispitivan je utjecaj LiMMT-a na toplinske prijelaze (staklište i talište) i kristalnost PEO-a. Utvrđeno je da dodatak LiBOB-a u potpunosti narušava kristalnost uzoraka do 30 mas.% LiMMT, a uzorci s 30 i 40% LiMMT-a pokazali su kristalnu fazu s talištem koje je niže od tališta čistog PEO-a. Metodom infracrvene spektroskopije s Fourierovom transformacijom (FT-IR) ispitivan je utjecaj LiMMT-a na strukturu PEO-a. Utvrđeno je da se dodatkom LiMMT-a narušava spiralna konformacija kristalne faze izvornog PEO-a.
Abstract (english)	This paper examines the impact of lithium bis(oxalato)borate (LiBOB) filler on thermal transitions (glass transition temperature, melting temperature) and crystallinity od poly(ethylene-oxide). Differential scanning calorimetry (DSC) and Fourier Transformation Infrared Spectroscopy (FT-IR) have been applied. LiMMT was prepared by ion exchange method from natural montmorillonite, and polymeric nanocomposites PEO10/LiMMT/LiBOB with different weight ratios PEO/LiMMT 95/5, 90/10, 80/20, 70/30 and 60/40 were prepared by the melt intercalation method. Salt of lithium bis(oxalato)borate (LiBOB) was added in a ratio of (1:8 Li : oxygen of ether) to achieve a sufficient concentration of the charge carrier. Differential scanning calorimetry (DSC) analysis investigate the influence od LiMMT on the thermal transitions (glass transition temperature, melting temperature) and crystallinity of PEO10. It was found that the addition of LiBOB completely destroys the crystallinity of the samples up to 30 % of LiMMT. Samples with 30 % and 40 % of LiMMT showed a crystalline phase with a melting point that is lower than the melting point of original PEO. Fourier Transformation Infrared Spectroscopy (FT-IR) investigate the influence LiMMT on the PEO10 structure. It was found that the addition of LiMMT causes distortion of the spiral conformation of the crystalline phase of the original PEO.
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:167:684074
Study programme	Title: 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 resource	Text
File origin	Born digital
Access conditions	Open access
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Created on	2022-10-21 06:24:48