Organokovové kationtové fotoiniciátory

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F08%3A00007824" target="_blank" >RIV/00216275:25310/08:00007824 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

ORGANOMETALLIC CATIONIC PHOTOINITIATORS

Popis výsledku v původním jazyce

Several arene-iron complexes ((5-2,4-cyclopentadien-1-yl)[(1,2,3,4,5,6-)-arene] ferrous hexafluorophosphate) were tested as photoinitiators for cationic polymerization. The UV light decomposes arene-ironcyclopentadienyl (arene-Fe+Cp) cation selectively to the corresponding aromatic compound and iron cyclopentadiene (CpFe+) cation. Structure of aromatic compound affects decomposition upon UV light. FeCp+ formed during irradiation is active species for cationic polymerization. Decomposition of arene-ironinitiators upon UV light was followed by UV-VIS spectroscopy. It was measured the decrease of absorption band at about 245 nm after irradiation 2x10-4 M solution in acetonitrile. Super pressure mercury lamp was used as source of UV radiation. Extinctioncoefficients and energies need for achieving 50% conversion were calculated for all initiators. Efficiency of polymerization initiatiation was followed by FTIR spectroscopy in vinylether and epoxide monomers. Results from FTIR showed that

Název v anglickém jazyce

ORGANOMETALLIC CATIONIC PHOTOINITIATORS

Popis výsledku anglicky

Several arene-iron complexes ((5-2,4-cyclopentadien-1-yl)[(1,2,3,4,5,6-)-arene] ferrous hexafluorophosphate) were tested as photoinitiators for cationic polymerization. The UV light decomposes arene-ironcyclopentadienyl (arene-Fe+Cp) cation selectively to the corresponding aromatic compound and iron cyclopentadiene (CpFe+) cation. Structure of aromatic compound affects decomposition upon UV light. FeCp+ formed during irradiation is active species for cationic polymerization. Decomposition of arene-ironinitiators upon UV light was followed by UV-VIS spectroscopy. It was measured the decrease of absorption band at about 245 nm after irradiation 2x10-4 M solution in acetonitrile. Super pressure mercury lamp was used as source of UV radiation. Extinctioncoefficients and energies need for achieving 50% conversion were calculated for all initiators. Efficiency of polymerization initiatiation was followed by FTIR spectroscopy in vinylether and epoxide monomers. Results from FTIR showed that

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Chemicke listy

ISSN

1803-2389

e-ISSN

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Svazek periodika

102

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

3

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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