期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 40, 期 16, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201900234
关键词
anthraquinone; cationic photopolymerization; light-emitting diodes (LED); photoinitiation mechanism; photoinitiators
资金
- Australian Research Council [FL170100041, FT170100301] Funding Source: Medline
- National Facility of the Australian National Computational Infrastructure Funding Source: Medline
The design and development of photoinitiating systems applicable to UV or even visible light delivered from light-emitting diodes (LEDs) has been attracting increasing attention due to their great potential applications in various fields. Compared to the strategy of synthesizing novel compounds, the exploration of existing chemicals with interesting photochemical/photophysical properties for their usage as photoinitiators is more appealing and easily commercialized. Nevertheless, a number of compounds such as monoamino-substituted anthraquinone derivatives, which are intensively investigated for their photophysical and photochemical properties, have seldom been studied for their roles as photoinitiators under LED irradiation. Herein, three monoamino-substituted anthraquinone derivatives, that is, 1-aminoanthraquinone, 1-(methylamino)anthraquinone and 1-(benzamido)anthraquinone, are studied for their potential as photoinitiators. The photoinitiation mechanism of these monoamino-substituted anthraquinone derivatives, when combined with iodonium salt, is first clarified using computational quantum chemistry, fluorescence, steady-state photolysis, and electron spin resonance spin-trapping techniques. Then, their photoinitiation ability for the cationic photopolymerization of epoxide and divinyl ether monomers is also investigated.
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