Design of New Amines of Low Toxicity for Efficient Free Radical Polymerization under Air

Two new amines are proposed here as a new class of high performance coinitiators for camphorquinone (CQ)‐based systems for mild polymerizations of methacrylates under blue light irradiation (LED@477 nm). These new compounds are very interesting because they are much less toxic than commonly used ami...

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Published inMacromolecular chemistry and physics Vol. 221; no. 16
Main Authors Sprick, Elodie, Becht, Jean‐Michel, Tigges, Thomas, Neuhaus, Kira, Weber, Christoph, Lalevée, Jacques
Format Journal Article
LanguageEnglish
Published Weinheim Wiley Subscription Services, Inc 01.08.2020
Wiley-VCH Verlag
Subjects
Amines
Benzoates
Benzonitrile
Bleaching
bleaching properties
Chemical Sciences
Copolymerization
Free radical polymerization
Free radicals
Leaching
Light emitting diodes
Light irradiation
MHPT
Other
photoinitiators
photopolymerization
Polymerization
Toxicity
visible light irradiation
photopolymerization
bleaching properties
MHPT
visible light irradiation
photoinitiators
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Summary:Two new amines are proposed here as a new class of high performance coinitiators for camphorquinone (CQ)‐based systems for mild polymerizations of methacrylates under blue light irradiation (LED@477 nm). These new compounds are very interesting because they are much less toxic than commonly used amines such as ethyl 4‐(dimethylamino) benzoate or 4‐(dimethylamino) benzonitrile. The particularity of one of these two new amines is its dual role: it is a coinitiator and contains a copolymerizable group. Therefore, it is much less subject to migration or leaching, which is a major current issue of polymers. Excellent polymerization performances in the presence of CQ for the free radical polymerization of methacrylates under blue light irradiation and under air are observed. Remarkably, good bleaching properties are obtained after polymerization. Two new amines are proposed here as a new class of high performance coinitiators for camphorquinone (CQ)‐based systems for mild polymerizations of methacrylates under blue light irradiation. These new compounds are very interesting because they are much less toxic than commonly used amines such as ethyl 4‐(dimethylamino) benzoate or 4‐(dimethylamino) benzonitrile. Excellent polymerization performances and good bleaching properties are obeserved.
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ISSN:1022-1352
1521-3935
DOI:10.1002/macp.202000211