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Title:Hiperzamreženje polihipe materialov z uporabo tiol-en klik kemije : diplomsko delo univerzitetnega študijskega programa I. stopnje
Authors:ID Šlamberger, Vitan (Author)
ID Krajnc, Peter (Mentor) More about this mentor... New window
ID Kramer, Stanko (Comentor)
Files:.pdf UN_Slamberger_Vitan_2023.pdf (3,62 MB)
MD5: 42777B126FE19D4D42215BD24C91CD38
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:V diplomskem delu je predstavljena priprava poroznih polimerov na osnovi 2-etilheksil akrilata (EHA) in različnih zamreževal (divinil adipat (DVA), etilen glikol dimetakrilat (EGDMA), 1,4 – butandiol divinil eter (BDVE)) z uporabo polimerizacije v emulziji z visokim deležem notranje faze oz. HIP emulziji. Kopolimere smo pripravili v različnih razmerjih EHA in zamreževala, pri čemer smo dodali še surfaktant PEL 121 in iniciator AIBN. Poleg prej naštetih komponent, ki sestavljajo kontinuirno fazo, smo dodali še 80 vol.% vodne faze, ki je bila 1,78-% vodna raztopina CaCl2. Sintetizirane polimere smo hiperzamrežili z uporabo radikalskega hiperzamreženja in tiol-en hiperzarmeženja z di- in tri-tiolom z namenom povišanja specifične površine. Pri treh od devetih sintetiziranih polimerih smo opazili poliHIPE strukture z uporabo vrstične elektronske mikroskopije, pri ostalih pa smo opazili bikontinuirno morfologijo. Specifične površine polimerov so bile izmerjene z uporabo porozimetrije na podlagi modela BET, in sicer do 9,02 m2/g, kar je predstavljalo približno 1,5-kratno povišanje specifične površine zaradi hiperzamreženja z di-tiolom.
Keywords:poliHIPE, hiperzamreženje, polimerizacija, porozni polimeri, tiol-en
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[V. Šlamberger]
Year of publishing:2023
Number of pages:1 spletni vir (1 datoteka PDF (VIII, 27 f.))
PID:20.500.12556/DKUM-85080 New window
UDC:66.095.26(043.2)
COBISS.SI-ID:170140163 New window
Publication date in DKUM:05.09.2023
Views:422
Downloads:85
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FKKT
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:17.08.2023

Secondary language

Language:English
Title:Hypercrosslinking of polyhipe materials via thiol-ene click chemistry
Abstract:The thesis presents the preparation of porous polymers based on 2-ethylhexyl acrylate (EHA) and various crosslinkers (divinyl adipate (DVA), ethylene glycol dimethacrylate (EGDMA) and 1,4-butanediol divinyl ether (BDVE)) using high internal phase emulsion templating. The copolymers were prepared in different proportions of EHA and the crosslinkers, while adding the surfactant PEL 121 and the initiator AIBN. In addition to the previously listed components that make up the continuous phase, 80 vol.% of the aqueous phase (1,78-% aqueous solution of CaCl2) was added. The synthesized polymers were hypercrosslinked using radical hypercrosslinking and thiol-ene hypercrosslinking with a di- and a tri-thiol in order to increase the specific surface area. In three of the nine synthesized polymers, a distinct polyHIPE structure was observed using scanning electron microscopy, while in the rest, a bicontinuous morphology was observed. The specific surface areas of the polymers were determined using porosimetry based on the BET model. The specific surface area was up to 9,02 m2/g (using di-thiol), which represented a 1.5-fold increase compared to the non-hypercrosslinked materials.
Keywords:polyHIPE, hypercrosslinking, polymerization, porous polymers, thiol-ene


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