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master's thesis
Primjena razlikovne pretražne kalorimetrije u karakterizaciji organskih spojeva
2021. urn:nbn:hr:182:430257
Šofić, Karla
Josip Juraj Strossmayer University of Osijek
Department of Chemistry
Department of General, Inorganic and Physical Chemistry and Methodology of Chemistry

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Šofić, K. (2021). Primjena razlikovne pretražne kalorimetrije u karakterizaciji organskih spojeva (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry. Retrieved from https://urn.nsk.hr/urn:nbn:hr:182:430257

Šofić, Karla. "Primjena razlikovne pretražne kalorimetrije u karakterizaciji organskih spojeva." Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2021. https://urn.nsk.hr/urn:nbn:hr:182:430257

Šofić, Karla. "Primjena razlikovne pretražne kalorimetrije u karakterizaciji organskih spojeva." Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2021. https://urn.nsk.hr/urn:nbn:hr:182:430257

Šofić, K. (2021). 'Primjena razlikovne pretražne kalorimetrije u karakterizaciji organskih spojeva', Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, accessed 19 November 2024, https://urn.nsk.hr/urn:nbn:hr:182:430257

Šofić K. Primjena razlikovne pretražne kalorimetrije u karakterizaciji organskih spojeva [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry; 2021 [cited 2024 November 19] Available at: https://urn.nsk.hr/urn:nbn:hr:182:430257

K. Šofić, "Primjena razlikovne pretražne kalorimetrije u karakterizaciji organskih spojeva", Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, Osijek, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:182:430257

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Metadata
TitlePrimjena razlikovne pretražne kalorimetrije u karakterizaciji organskih spojeva
Title (english)Application of differential scanning calorimetry in the characterization of organic compounds
AuthorKarla Šofić
MentorTomislav Balić (mentor)
Committee memberOlivera Galović (predsjednik povjerenstva)
Committee memberTomislav Balić (član povjerenstva)
Committee memberMartina Medvidović-Kosanović (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Department of Chemistry
(Department of General, Inorganic and Physical Chemistry and Methodology of Chemistry)
Osijek
Defense date and country2021-07-14, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Inorganic Chemistry
Abstract
Fizikalna svojstva (talište) organskih spojeva iz skupine aromatskih alkohola u kojima su dvije aromatske jezgre povezane alifatskim lancima različitih duljina ispitivana su termogravimetrijskom analizom i razlikovnom pretražnom kalorimetrijom. Pomoću krivulja snimljenih TGA/DSC instrumentom utvrđeno je da duljina alifatskog lanca i njegova planarnost utječu na tališta organskih spojeva. Rezultati su pokazali da spojevi s dužim alifatskim lancima imaju niža tališta zbog većeg broja alifatskih skupina koje su hidrofobne i uzrokuju međusobne odbojne interakcije zbog kojih dolazi do destabilizacije kristalne strukture molekule. Rezultati također pokazuju da nepravilnosti kao što su odstupanje od planarnosti kod molekula s neparnim brojem CH2 skupina uzrokuju niže talište.
Abstract (english)
The physical properties (melting points) of organic compounds from the group of aromatic alcohols in which two aromatic nuclei are connected by aliphatic chains of different lengths were examined by thermogravimetric analysis and differential scanning calorimetry. Using curves recorded with a TGA / DSC instrument, it was determined that the length of the aliphatic chain and its planarity affect the melting points of organic compounds. The results showed that compounds with longer aliphatic chains have lower melting points due to a larger number of aliphatic groups that are hydrophobic and cause mutual repulsive interactions which lead to destabilization of the crystal structure of the molecule. The results also show that irregularities such as deviations from planarity in molecules with an odd number of CH2 groups cause lower melting point.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:182:430257
Study programmeTitle: Graduate University Study of Chemistry; research program; specializations in: Research program
Course: Research program
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra kemije (magistar/magistra kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2022-11-02 08:56:49