Funkcionalizacija metakrilatnog aditiva s masnim kiselinama

master's thesis

• Title (english): Functionalization of methacrylate additive with fatty acids
• Author: Franka Barbarić
• Mentor: Fabio Faraguna (mentor)
• Committee member: Fabio Faraguna (predsjednik povjerenstva)
• Committee member: Ante Jukić (član povjerenstva)
• Committee member: Mirela Leskovac (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2020-09-15, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Basic Technical Sciences

Abstract

Procesom radikalske polimerizacije sintetizirana su 4 terpolimera. Reakcije polimerizacije provodile su se pri 95 °C uz dodavanje monofunkcionalnog peroksidnog inicijatora. Kao monomeri u reakcijama polimerizacije koristili su se MMA, DDMA, ODMA i HPMA. Pritom su dobivena dva komercijalna polimera i dva funkcionalizirana polimera. Funkcionalizacija se provodila pomoću reakcija esterifikacije sa stearinskom kiselinom. Polimer D dobiven je funkcionalizacijom polimera B koji je prethodno dobiven reakcijom polimerizacija iz monomera MMA, DDMA i HPMA. Monomer HPMA funkcionaliziran je sa stearinskom kiselinom i kao takav stupa u reakciju s druga dva monomera, MMA i DDMA. Tim reakcijama dobiven je polimer C. U radu su istražena svojstva poli(metil-metakrilat-ko-dodecil-metakrilat-ko-oktadecilmetakrilata) i poli(metil-metakrilat-ko-dodecil-metakrilat-ko-hidroksipropilmetakrilata) koja imaju utjecaj na njihovu primjenu kao snižavala tecišta. Pripravljenim uzorcima terpolimera određeni su: sastav uz pomoć FTIR spektroskopije, udio monomera pomoću 1H NMR spektroskopije, raspodjele molekulskih masa kromatografijom na propusnom gelu te toplinski prijelazi svojstva metodom diferencijalne pretražne kalorimetrije.

Abstract (english)

In this research the influence of different amount and type of comonomers in polymer on polymer properties and the influence of polymers as pour point depressants was investigated. Radical polymerization was performed in toluene as a solvent at the temperature of 95 °C in the presence of monofunctional peroxide initiator. A total of 4 terpolymers were synthesized. Polymers were functionalized by the esterification process. Composition was determined with FTIR spectroscopy and comonomer content were determined by 1H NMR spectroscopy. Molecular weight distribution was determined with gel permeation chromatography and thermal properties by differential scanning calorimetry.

• Keywords: metil-metakrilat; dodecil-metakrilat; oktadecil-metakrilat; hidroksipropil-metakrilat; poli(metil-metakrilat-ko-dodecilmetakrilat-ko-oktadecil-metakrilat); terpolimeri; bazno mineralno ulje; radikalska polimerizacija; tecište; snižavalo tecišta
• Keywords (english): methyl-methacrylate; dodecyl-methacrylate; octadecyl-methacrylate; hydroksipropyl-methacrylate; poly(methyl methacrylateco-dodecyl methacrylate-co-octadecyl-methacrylate); copolymers; mineral base oil; pour point depressant
• Language: croatian
• URN:NBN: urn:nbn:hr:149:209292
• Project: Number: UIP-2019-04-5242; Title: Razvoj funkcionalnih biogoriva i (bio)aditiva te ispitivanje primjenskih svojstava mješavina s mineralnim gorivima; Title: Development of functional biofuels and (bio)additives and characterization of blends with mineral fuels; Acronym: FunBioFA; Leader: Fabio Faraguna; Jurisdiction: Croatia; Funder: HRZZ; Funding stream: UIP
• Study programme: Title: Materials Science and Engineering - Graduate study; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka kemijskog inženjerstva (magistar/magistra inženjer/inženjerka kemijskog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2022-02-28 15:13:54