Ethyl 6-(trifluoromethyl)pyridazine-3-carboxylate
CAS Number:
1192155-06-8
Molecular Formula:
C8H7F3N2O2
Push–pull (thio)barbituric acid derivatives in dye photosensitized radical and cationic polymerization reactions under 457/473 nm laser beams or blue LEDs
Literature Information
Publication Date
2013-05-07
DOI
10.1039/C3PY00372H
Impact Factor
5.582
Authors
Mohamad-Ali Tehfe, Frédéric Dumur, Bernadette Graff, Fabrice Morlet-Savary, Didier Gigmes, Jean-Pierre Fouassier, Jacques Lalevée
View Original
Abstract
A series of new dyes based on (thio)barbituric acid derivatives were synthesized and used as photoinitiators of polymerization upon very soft irradiation (laser diodes at 457 nm and 473 nm; blue LED bulbs or even a halogen lamp). These dyes can work according to an oxidative cycle (dye/diphenyl iodonium salt/N-vinylcarbazole system) or a reductive cycle (dye/amine/alkyl halide system) and partly behave as organic photocatalysts. Ring-opening polymerization (ROP) of epoxides and radical polymerization (RP) of acrylates are easily promoted. Excellent RP and/or ROP polymerization profiles are obtained. The contrasting behavior of the thiobarbituric vs. barbituric acid derivative is discussed. The initiation mechanisms, analyzed by Electron Spin Resonance (ESR) and steady state photolysis experiments, are detailed.
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Source Journal
Polymer Chemistry
CiteScore:
8.6
Self-citation Rate:
7.3%
Articles per Year:
457
Polymer Chemistry welcomes submissions in all areas of polymer science that have a strong focus on macromolecular chemistry. Manuscripts may cover a broad range of fields, yet no direct application focus is required.
Recommended Compounds
![[4-Chloro-3-(diethylcarbamoyl)phenyl]boronic acid structure](https://static.chemtradehub.com/structs/871/871332-68-2-0e3b.webp "[4-Chloro-3-(diethylcarbamoyl)phenyl]boronic acid structure")
[4-Chloro-3-(diethylcarbamoyl)phenyl]boronic acid
CAS Number:
871332-68-2
Molecular Formula:
C11H15BClNO3
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