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- Title
Meta-Terphenyl Derivative/Iodonium Salt/9H-Carbazole-9-ethanol Photoinitiating Systems for Free Radical Promoted Cationic Polymerization upon Visible Lights.
- Authors
Mousawi, Assi Al; Dietlin, Céline; Graff, Bernadette; Morlet‐Savary, Fabrice; Toufaily, Joumana; Hamieh, Tayssir; Fouassier, Jean Pierre; Chachaj‐Brekiesz, Anna; Ortyl, Joanna; Lalevée, Jacques
- Abstract
In the present paper, new photoinitiators based on the meta-terphenyl scaffold in combination with an iodonium salt and 9H-carbazole-9-ethanol (CARET) are proposed for the free radical promoted cationic polymerization of epoxides upon visible light exposure using light emitting diodes at 405, 455, and 470 nm. Remarkably, a new high performance additive (i.e., CARET) is proposed here for cationic polymerizations. CARET shows some important advantages compared to other reported additives such as N-vinylcarbazole or benzyl alcohol used as references. Excellent polymerization initiating abilities are found and a full picture of the involved chemical mechanisms is provided.
- Subjects
TERPHENYL; IODONIUM salts; CARBAZOLE; CHEMICAL synthesis; ADDITION polymerization; FREE radical reactions; VISIBLE spectra; CATIONIC polymers
- Publication
Macromolecular Chemistry & Physics, 2016, Vol 217, Issue 17, p1955
- ISSN
1022-1352
- Publication type
Article
- DOI
10.1002/macp.201600224