Polimerizacija benzil kloridnih derivatov v emulzijskih medijih : diplomsko delo univerzitetnega študijskega programa I. stopnje

Brunček, Nejc

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Title:	Polimerizacija benzil kloridnih derivatov v emulzijskih medijih : diplomsko delo univerzitetnega študijskega programa I. stopnje
Authors:	ID Brunček, Nejc (Author) ID Krajnc, Peter (Mentor) More about this mentor... ID Paljevac, Muzafera (Comentor)
Files:	UN_Bruncek_Nejc_2020.pdf (2,24 MB) MD5: 266916705BA504DDE960FB6BB46602A3 PID: 20.500.12556/dkum/4133703c-7423-4ed8-bcfa-7928e802cbbc
Language:	Slovenian
Work type:	Bachelor thesis/paper
Typology:	2.11 - Undergraduate Thesis
Organization:	FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:	Polimerni materiali so del našega vsakdana. Sintetiziramo jih lahko na več načinov. V okviru diplomske naloge smo sintetizirali poli(vinilbenzil klorid-ko-divinilbenzenske) monolite s polimerizacijo kontinuirne faze emulzije z visokim deležem notranje faze in s polimerizacijo v masi. Reakcijo polimerizacije smo inducirali z uporabo termičnega iniciatorja α,α'-azoisobutironitrila, redoks iniciatorja N,N,N',N'- tetrametiletan-1,2-diaminom v kombinaciji s termičnim iniciatorjem amonijevim persulfatom in fotoiniciatorjema Irgacure 784 in H-Nu 470. Rezultati so pokazali, da lahko poli(vinilbenzil klorid-ko-divinilbenzenske) monolite uspešno sintetiziramo s polimerizacijo v masi in s polimerizacijo kontinuirne emulzije z visokim deležem notranje faze, kadar jo induciramo s termičnim in redoks iniciatorjem. Fotopolimerizacija, ki jo lahko induciramo z dnevno svetlobo ali modro svetlobo LED lučk, je bila uspešna le pri polimerizaciji v masi. Kontinuirna faza emulzije na osnovi vinilbenzil klorida in divinilbenzena s fotopolimerizacijo ni dala polimernega produkta. Iz tega razloga smo zamreževalo divinilbenzen nadomestili s trimetilpropan triakrilatom. Polimerizacija kontinuirne faze emulzije na osnovi vinilbenzil klorid-ko-trimetilpropan triakrilata in polimerzacija vinilbenzil klorida zamreženega s trimetilpropan triakrilatom v masi, sta bili uspešni s fotoiniciatorjem Irgacure 784. Na osnovi rezultatov sklepamo, da na uspešnost polimerizacije vpliva več dejavnikov. V našem primeru izbrano zamreževalo, izbran iniciator in vir svetlobe.
Keywords:	: vinilbenzil klorid, divinilbenzen, iniciator, porozni materiali, HIPE emulzije
Place of publishing:	Maribor
Place of performance:	Maribor
Publisher:	[N. Brunček]
Year of publishing:	2020
Number of pages:	VIII, 29 str.
PID:	20.500.12556/DKUM-77553
UDC:	66.095.26:547.539.211.3(043.2)
COBISS.SI-ID:	32459779
NUK URN:	URN:SI:UM:DK:VTA2Q42J
Publication date in DKUM:	08.10.2020
Views:	1140
Downloads:	103
Metadata:
Categories:	KTFMB - FKKT
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Licences

License:	CC BY 4.0, Creative Commons Attribution 4.0 International

Link:	http://creativecommons.org/licenses/by/4.0/
Description:	This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:	03.09.2020

Secondary language

Language:	English
Title:	Polymerisation of benzyl chloride derivatives in emulsion media
Abstract:	Polymeric materials are part of our everyday life. They can be synthesized in several ways. As part of the diploma thesis, we synthesized poly(vinylbenzyl chloride-co-divinylbenzene) monoliths by polymerisation of the continuous phase of the high internal phase emulsion and by bulk polymerisation. The polymerisation reaction was induced using the thermal initiator α,α'-azoisobutyronitrile, redox initiator N,N,N',N'-tetramethylethane-1,2-diamine in combination with the thermal initiator ammonium persulfate and photoinitiators Irgacure 784 and H-Nu 470. The results showed, that poly(vinylbenzyl chloride-co-divinylbenzene) monoliths can be successfully synthesized by bulk polymerisation and by polymerisation of a continuous phase of high internal phase emulsion when induced by a thermal and redox initiator. Photopolymerisation, which can be induced by daylight or blue light of LED lights, has been successful only in bulk polymerisation. The polymerisation of high internal phase emulsion did not give a polymer product. For this reason, the crosslinker divinylbenzene was replaced with trimethylpropane triacrylate. The polymerisation of the continuous phase of high internal phase emulsion based on vinylbenzyl chloride-co-trimethylpropane triacrylate and bulk polymerisation of vinylbenzyl chloride crosslinked with trimethylpropane triacrylate were successful with photoinitiator Irgacure 784. Based on the results, we conclude that the success of polymerisation is influenced by several factors. In our case, the selected crosslinker, the selected initiator and the light source.
Keywords:	vinylbenzyl chloride, divinylbenzene, initiator, porous materials, HIPE emulsions

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