Publication detail

SENSITIZATION OF PHOTOINITIATORS FOR UV POLYMERISATION

Authors: Jašúrek Bohumil | Kazmířová Martina | Vališ Jan | Weidlich Tomáš

Year: 2010

Type of publication: ostatní - článek ve sborníku

Name of source: Proceedings - The Fifth International Symposium GRID 2010

Publisher name: Univerzitet u Novom Sadu

Place: Novi Sad

Page from-to: 27-31

Titles:

Language	Name	Abstract	Keywords
cze	Senzibilace fotoiniciátorů UV polymerace	Senzibilace byla sledována u 3 fotoiniciátorů, připraveného hybridního iniciátoru HP1 a dvou komerčních, radikálového Irgacure 2959 a kationtového Irgacure 261. Anthracene a isopropyl thioxanthone byly použity jako senzibilizátory. Pomocí UV-VIS spektroskopie byly stanoveny molární absorpční koeficienty iniciátorů a senzibilizátorů. Účinnost senzibilace byla sledována ve dvou typech pojiva, akrylátovém a epoxidovém pomocí FTIR spektroskopie.	senzibilace; fotoiniciátor; UV polymerace; UV-VIS; FTIR
eng	SENSITIZATION OF PHOTOINITIATORS FOR UV POLYMERISATION	In this paper is investigated sensitization of 3 photoinitiators. Prepared hybrid photoinitiator HP1 and two commercially available photoinitiators Irgacure 2959 and Irgacure 261. HP1 is hybrid photoinitiator with higher molecular weight containing chemical groups suitable for starting free radical and cationic polymerization simultaneously. Irgacure 261 is cationic photoinitiator and Irgacure 2959 is free radical photoinitiator. Anthracene and isopropyl thioxanthone were used as sensitizers. Molar absorption coefficients of photoinitiators and sensitizers were determined by UV-VIS spectroscopy. The sensitization efficiency was examined in pentaerythritol triacrylate and 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexanecarboxylate by FTIR spectroscopy.	photoinitiator; sensitization; UV-VIS; FTIR; UV polymerization

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