2-amino-4,6-diphenyl-pyridine-3-carbonitrile derivatives as new photosensitizers of diphenyliodonium salt and their applications in 3D printing photopolymerization processes
Authors:
- Patryk Szymaszek,
- Paweł Fiedor,
- Maciej Pilch,
- Anna Chachaj-Brekiesz,
- Mariusz Galek,
- Joanna Ortyl
Abstract
In this work, we presented a new bimolecular photoinitiating system based on 2-amino-4,6-diphenylpyridine-3-carbonitrile derivatives as visible photosensitizers of diphenyliodonium salt. Real-time FT-IR photopolymerization experiments with cycloaliphatic epoxide and vinyl monomers showed good reactivity of the bimolecular photoinitiating systems under UV-A LED as visible light sources. Steady-state photolysis and fluorescence experiments demonstrated the ability to form initiating species. The 2-amino-4,6-diphenylpyridine-3-carbonitrile derivatives were also investigated as a type II free-radical photoinitiator with an amine. It was confirmed that the 2-amino-4,6-diphenylpyridine-3-carbonitrile derivatives, in combination with different types of additives, e.g., amine as co-initiator or in the presence of onium salt, can act as bimolecular photoinitiating systems for cationic, free-radical, and thiol-ene photopolymerization processes by hydrogen abstraction and electron transfer reactions stimulated by either near-UV or visible light irradiation.
- Record ID
- CUT0fe922488021426a9c3bc3803c2b3807
- Publication categories
- ; ;
- Author
- Pages
- 223
- Substantive notes
- Poster Presentations with Flash Talk
- Tyt. źródła wg okł.
- Book
- ESPS 2021 : 6th Virtual European Symposium of Photopolymer Science : dedicated to Ewa Andrzejewska, online June 15-17, 2021, 2021, Gumpoldskirchen, ChemIT e.U., ISBN 978-3-9504809-3-1
- Keywords in English
- photopolymerization, 3D printing, photosensitizers
- URL
- https://www.vesps2021.net/program/list-of-poster-presentations Opening in a new tab
- Related project
- Molecular desing, synthesis and application of photoinitiator-catalysts (PICs) for photopolymerization reactions. . Project leader at PK: , ,
- Language
- eng (en) English
- License
- Score (nominal)
- 0
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT0fe922488021426a9c3bc3803c2b3807/
- URN
urn:pkr-prod:CUT0fe922488021426a9c3bc3803c2b3807
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