Issue 18, 2022

3-Ketoquinolones as new photoinitiators for free radical photopolymerization under LED

Abstract

A new class of photoinitiators for free radical photopolymerization based on 3-ketoquinolone chromophoric group is presented. Spectroscopic properties, quantum yield in triplet state and efficiency in formation of initiating radicals were measured. Photopolymerization experiments show that 3-ketoquinolones are effective photoinitiators for LED curing. Additional properties such as yellowing of cured films are also measured. These compounds appear to be interesting alternative to conventional type II photoinitiators.

Graphical abstract: 3-Ketoquinolones as new photoinitiators for free radical photopolymerization under LED

Supplementary files

Article information

Article type
Paper
Submitted
14 jan 2022
Accepted
08 apr 2022
First published
11 apr 2022

Polym. Chem., 2022,13, 2659-2664

3-Ketoquinolones as new photoinitiators for free radical photopolymerization under LED

M. Morone, S. Postle, V. Razzano, C. Deguines and X. Allonas, Polym. Chem., 2022, 13, 2659 DOI: 10.1039/D2PY00058J

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