About: Investigation of Decomposition of Photoinitiators

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In this paper were investigated properties of four photoinitiators. Two of them are commercially available initiators (Irgacure 2959 and Irgacure 261) and the other two are new photoinitiators that were prepared (CB and HP1). CB is cationic organometallic photoinitiators and HP1 is hybrid photoinitiator with higher molecular weight containing chemical groups suitable for starting free radical and cationic polymerization simultaneously. The absorption properties and comparison of the rate of photodecomposition of tested photoinitiators were measured based on UV-VIS spectrometry. The photochemical mechanism and the estimated number of decomposition products after UV photolysis of initiators were proposed based on the results of mass spectrometry and factor analysis of UV-VIS spectra. The results from mass spectrometry and factor analysis have shown very good correlation. CB and HP1 decompose upon UV light exposure and can be used as photoinitiators for cationic (CB and HP1) or free radical polymerizat In this paper were investigated properties of four photoinitiators. Two of them are commercially available initiators (Irgacure 2959 and Irgacure 261) and the other two are new photoinitiators that were prepared (CB and HP1). CB is cationic organometallic photoinitiators and HP1 is hybrid photoinitiator with higher molecular weight containing chemical groups suitable for starting free radical and cationic polymerization simultaneously. The absorption properties and comparison of the rate of photodecomposition of tested photoinitiators were measured based on UV-VIS spectrometry. The photochemical mechanism and the estimated number of decomposition products after UV photolysis of initiators were proposed based on the results of mass spectrometry and factor analysis of UV-VIS spectra. The results from mass spectrometry and factor analysis have shown very good correlation. CB and HP1 decompose upon UV light exposure and can be used as photoinitiators for cationic (CB and HP1) or free radical polymerizat (en) Byly sledovány vlastnosti 4 fotoiniciátorů, dva z nich byly komerčně dostupné (radikálový Irgacure 2959 a kationtový Irgacure 261) a dzbylé dva byly hově připraveny (CB and HP1). CB je katintový iniciátor typu orhanokovové soli, HP1 je hybridní iniciátor s vyšší molekulovou hmotností obsahující strukturní jednotky pro iniciaci současné radikálové i kationtové polymerace. Absorpční vlastnosti a stupeň fiotorozkladu byly sledovány pomocí UV-VIS spektrometrie. Mechanismus rozpadu a počet produktů rozkladu byl sledován hmotnostní spektroskopií a faktorovoui analýzou UV-VIS spekter. (cs)
Title	Investigation of Decomposition of Photoinitiators Investigation of Decomposition of Photoinitiators (en) Studium fotorozpadu iniciátorů (cs)
skos:prefLabel	Investigation of Decomposition of Photoinitiators Investigation of Decomposition of Photoinitiators (en) Studium fotorozpadu iniciátorů (cs)
skos:notation	RIV/00216275:25310/08:00007823!RIV09-MSM-25310___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM0021627501)
http://linked.open...iv/cisloPeriodika	Neuveden
http://linked.open...vai/riv/dodaniDat	2009
http://linked.open...aciTvurceVysledku	Syrový, Tomáš Vališ, Jan Jašúrek, Bohumil Weidlich, Tomáš
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Pardubice / Fakulta chemicko-technologická
http://linked.open...dnocenehoVysledku	373201
http://linked.open...ai/riv/idVysledku	RIV/00216275:25310/08:00007823
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	photoinitiator; UV-VIS spectroscopy; MS; Factor analysis (en)
http://linked.open.../riv/klicoveSlovo	UV-VIS spectroscopy Factor analysis MS photoinitiator
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[0EA2D955891D]
http://linked.open...i/riv/nazevZdroje	Chemicke listy
http://linked.open...in/vavai/riv/obor	JJ
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	102
http://linked.open...iv/tvurceVysledku	Jašúrek, Bohumil Vališ, Jan Weidlich, Tomáš Syrový, Tomáš
http://linked.open...n/vavai/riv/zamer	Aimed preparation of special compounds and materials and investigation of their physical and chemical properties and supramolecular structures
issn	1803-2389
number of pages	4 (xsd:int)
http://localhost/t...ganizacniJednotka	25310

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