Dizajn funkcionalnih materijala temeljenih na aromatskim sustavima s azo i azodioksidnim poveznicama

doctoral thesis

• Title (english): Design of functional materials based on aromatic systems with azo and azodioxy linkages
• Author: Barbara Panić
• Mentor: Ivana Biljan (mentor)
• Committee member: Mirta Rubčić (predsjednik povjerenstva)
• Committee member: Davor Kovačević (član povjerenstva)
• Committee member: Gordana Matijašić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Chemistry); Zagreb
• Defense date and country: 2024-12-11, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Chemistry
• Universal decimal classification (UDC): 54 - Chemistry. Crystallography. Mineralogy

Abstract

U prvom dijelu disertacije je uz pomoć infracrvene spektroskopije, spektroskopije nuklearne magnetske rezonancije u čvrstom stanju, difrakcije rendgenskog zračenja na polikristalnom uzorku, elementne analize, termogravimetrijske analize te mjerenjem adsorpcijsko-desorpcijskih izotermi dušika istražen utjecaj različitih metoda sinteze i polaznih građevnih jedinki na strukturna i funkcionalna svojstva novih poroznih organskih polimera premoštenih azo vezama. Prikupljeni rezultati ukazuju da odabir polaznih građevnih jedinki kao i metode sinteze značajno utječu na poroznost i kapacitet adsorpcije ugljikovog dioksida sintetiziranih polimera. Identificirano je nekoliko potencijalnih kandidata za efikasnu adsorpciju ugljikovog dioksida. U drugom dijelu disertacije proučavana je dimerizacija i polimerizacija aromatskih C-nitrozo spojeva na površini Au(111) pomoću elipsometrije, mikroskopije atomskih sila i pretražne tunelirajuće mikroskopije u svrhu utvrđivanja smjernica za kontrolirani dizajn azodioksidnih filmova. Ustanovljeno je da tendencija nastanka azodioksidnih filmova na površini Au(111) raste s povećanjem koncentracije otopine i duljim vremenom adsorpcije.

Abstract (english)

In the first part of the dissertation, the influence of different synthesis methods and starting building units on the structural and functional properties of new porous organic polymers bridged by azo bonds was investigated by infrared spectroscopy, solid state nuclear magnetic resonance spectroscopy, X-ray powder diffraction, elemental analysis, thermogravimetric analysis and by measuring nitrogen adsorption-desorption isotherms. The obtained results indicated that different starting building units and synthesis methods significantly influence the functional properties of the synthesized polymers. Several potential candidates for efficient carbon dioxide adsorption have been identified. In the second part of the dissertation, the dimerization and polymerization of aromatic C-nitroso compounds on the Au(111) surface was studied using ellipsometry, atomic force microscopy and scanning tunneling microscopy to determine guidelines for the controlled design of azodioxy films. It was found that the tendency of aromatic C-nitroso compounds to form azodioxy films on the Au(111) surface increases with increasing solution concentration and longer adsorption time.

• Keywords: adsorpcija CO2; azo veza; azodioksidna veza; azodioksidni filmovi; porozni organski polimeri
• Keywords (english): azo bond; azodioxy bond; azodioxy films; CO2 adsorption; porous organic polymers
• Language: croatian
• URN:NBN: urn:nbn:hr:217:936692
• Promotion: 2024
• Project: Number: IP-2020-02-4467; Title: Od aromatskih spojeva s dušikom do novih funkcionalnih organskih materijala; Title: From nitrogen-containing aromatic compounds to new functional organic-based materials; Acronym: FunMaterials; Leader: Ivana Biljan; Jurisdiction: Croatia; Funder: Hrvatska zaklada za znanost; Funding stream: Research Projects
• Study programme: Title: Doctoral study; Study programme type: university; Study level: postgraduate; Academic / professional title: doktor/doktorica u području prirodnih znanosti (doktor/doktorica u području prirodnih znanosti)
• Type of resource: Text
• Extent: LXXIX, 176 str. ; 30 cm
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-12-18 14:18:46