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master's thesis
Volumetrijska svojstva 1-metilimidazolijevog acetata u vodi, dimetil sulfoksidu, N,N-dimetilformamidu pri različitim temperaturama
diplomski rad
Split: University of Split, Faculty of Chemistry and Technology, 2022. urn:nbn:hr:167:210520
Pehar, Ivan
University of Split
Faculty of Chemistry and Technology
Division of Chemistry

Institutional repository: Repository of the Faculty of chemistry and technology

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Pehar, I. (2022). Volumetrijska svojstva 1-metilimidazolijevog acetata u vodi, dimetil sulfoksidu, N,N-dimetilformamidu pri različitim temperaturama : diplomski rad (Master's thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:210520

Pehar, Ivan. "Volumetrijska svojstva 1-metilimidazolijevog acetata u vodi, dimetil sulfoksidu, N,N-dimetilformamidu pri različitim temperaturama : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2022. https://urn.nsk.hr/urn:nbn:hr:167:210520

Pehar, Ivan. "Volumetrijska svojstva 1-metilimidazolijevog acetata u vodi, dimetil sulfoksidu, N,N-dimetilformamidu pri različitim temperaturama : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2022. https://urn.nsk.hr/urn:nbn:hr:167:210520

Pehar, I. (2022). 'Volumetrijska svojstva 1-metilimidazolijevog acetata u vodi, dimetil sulfoksidu, N,N-dimetilformamidu pri različitim temperaturama : diplomski rad', Master's thesis, University of Split, Faculty of Chemistry and Technology, accessed 17 November 2024, https://urn.nsk.hr/urn:nbn:hr:167:210520

Pehar I. Volumetrijska svojstva 1-metilimidazolijevog acetata u vodi, dimetil sulfoksidu, N,N-dimetilformamidu pri različitim temperaturama : diplomski rad [Master's thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2022 [cited 2024 November 17] Available at: https://urn.nsk.hr/urn:nbn:hr:167:210520

I. Pehar, "Volumetrijska svojstva 1-metilimidazolijevog acetata u vodi, dimetil sulfoksidu, N,N-dimetilformamidu pri različitim temperaturama : diplomski rad", Master's thesis, University of Split, Faculty of Chemistry and Technology, Split, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:167:210520

Metadata
TitleVolumetrijska svojstva 1-metilimidazolijevog acetata u vodi, dimetil sulfoksidu, N,N-dimetilformamidu pri različitim temperaturama : diplomski rad
Title (english)Volumetric properties of solutions of 1-methylimidazolium acetate ionic liquid in water, dimethyl sulfoxide, N,N-dimethylacetamide and N,N-dimethylformamide at different temperatures : master thesis
AuthorIvan Pehar
MentorRenato Tomaš (mentor)
Committee memberMila Radan (predsjednik povjerenstva)
Committee memberLea Kukoč Modun (član povjerenstva)
Committee memberRenato Tomaš (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Chemistry)
Split
Defense date and country2022-11-14, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
U ovom radu sintetizirana je ionska tekućina 1-metilimidazolijev acetat, MimAc, reakcijom 1- metilimidazoliuma i octene kiseline. Potom su mjerene gustoće otopina MimAc u vodi, DMSO, DMA i DMF pri različitim molalitetima i temperaturama. Iz dobivenih gustoća, izračunata su razna volumetrijska svojstva: prividni molarni volumen, parcijalni molarni volumen otapala, parcijalni molarni volumen MimAc, granični prividni molarni volumen, granična prividna molarna ekspanzibilnost i Hepplerov koeficijent. Valjanost Massonove jednadžbe je provjerena te je utvrđena linerana ovisnost prividnog molarnog volumena o koncentraciji pri svim radnim temperaturama. Iz te su ovisnosti određeni veoma važni volumetrijski parametri: granični prividni molarni volumen i Massonov interakcijski koeficijent. Konačno, raspravljena su svojstva promoviranja strukture s pozitivnim koeficijentom (eng. „structure-maker“) ili rušenja strukture s negativnim koeficijentom (eng. „structure-breaker“) ispitivane ionske tekućine u raznim otapalima. Prema vrijednostima Hepplerovog koeficijenta, MimAc u DMF, DMA i DMSO se može opisati kao „structure-breaker“, a u vodi kao granični s koeficijentom blizu nule (eng. „borderline“).
Abstract (english)
Ionic liquid, MimAc was obtained in our laboratory from 1-methylimidazole and acetic acid. The densities of the solutions of MimAc in water, DMSO, DMA and DMF were measured at different molalities and temperatures. The obtained density data calculates volumetric properties (apparent molar volume, standard partial molar volumes, apparent molar volume at infinite dilution, limiting apparent molar expansibilities and Heppler's coefficient). The validity of Masson's equation was checked and applied to describe the evident molar volume dependence on molarity. The apparent molar volume at infinite dilution and interaction coefficient were obtained from this dependence at each temperature. Finally, structure-maker or structure-breaker properties of investigated IL in various solvents are discussed. According to the values of Heppler’s coefficients, MimAc IL, in DMF, DMA, and DMSO could be described as structure-breakers. Values of the Heppler’s coefficient for MimAc in water medium is around zero, so this investigated IL is classified as the borderline.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:210520
Study programmeTitle: Graduate university study of Food technology - graduate - university
Study programme type: university
Study level: graduate
Academic / professional title: magistar/a inženjer/ka prehrambene tehnologije (magistar/a inženjer/ka prehrambene tehnologije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2022-11-22 11:01:10