Photocuring Kinetic Studies of TMPTMA Monomer by Type II Photoinitiators of Different Weight Ratios of 2-Chlorohexaaryl Biimidazole (o-Cl-HABI) and N-Phenylglycine (NPG)

The curing behavior of the type II photoinitiator package based on different weight ratios of o-Cl-HABI (hydrogen acceptor)/NPG (hydrogen donor) systems (where o-Cl-HABI is a 2-chlorohexaaryl biimidazole, NPG is an N-phenylglycine) was investigated through FT-IR, gel-fraction, electron spin resonanc...

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Bibliographic Details
Published inJournal of Photopolymer Science and Technology Vol. 31; no. 4; pp. 487 - 492
Main Authors Chen, Yung-Chung, Kuo, Yuan-Tsung
Format Journal Article
LanguageEnglish
Japanese
Published Hiratsuka The Society of Photopolymer Science and Technology(SPST) 25.06.2018
Japan Science and Technology Agency
Subjects
Curing
Curvature
Different weight ratios
Electron paramagnetic resonance
Electron spin
Electrons
Nitrogen
o-Cl-HABI/NPG
Photocuring
Photoinitiator
Photoinitiators
Photoluminescence
Photoreactivity
Radical mechanism
Spin resonance
Weight
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Summary:The curing behavior of the type II photoinitiator package based on different weight ratios of o-Cl-HABI (hydrogen acceptor)/NPG (hydrogen donor) systems (where o-Cl-HABI is a 2-chlorohexaaryl biimidazole, NPG is an N-phenylglycine) was investigated through FT-IR, gel-fraction, electron spin resonance (ESR) and photoluminescence (PL) methodologies. As the amount of NPG increasing, the faster curing speed occurred. However, the curvature photo-reactivity phenomenon was observed as the amount of o-Cl-HABI at 0.5, 1 and 2 wt%, respectively. In addition, the radical transfer mechanism in the presence of air and nitrogen atmospheres was also discussed in this study.
ISSN:0914-9244
1349-6336
DOI:10.2494/photopolymer.31.487