Potential role of the coumarin derivaties as powerful photosensitizers for the cationic and free- radical polymerization under visible light and applications for 3D printing technology
Authors:
- Paweł Niezgoda,
- Joanna Ortyl
Abstract
Wide application of photo-cured compositions in 3D printing bases its success mainly on an extraordinary horizon of possibilities which spread along with this method. The number of possible combinations of monomers, initiators or color components makes the only limitation in this type of modeling methods our own imagination. The continuous improvement of the compositions, the study of their polymerization kinetics and chemical properties makes that while designing any model we are able to accurately predict and plan the final properties and application. Photopolymerization-based 3D printing is also finding many promising applications in consumer products as well as biomedical engineering for implantation, imaging, tissue culture and drug delivery, among others. It is also widely used in dental applications. Commercially available photoinitiating systems usually have one major drawback, due to the nature of the light-initiated photopolymerization process, of which the absorption characteristics remain the most important aspect. This results from the fact that for the process to proceed efficiently and quickly the photoinitiating system should absorb all, or a significant portion of the light radiation emitted by industrial light sources. Nowadays, we attach great importance to human health, which is why industrial plants try, as far as possible, to use light radiation from the visible wavelength range that is safe for humans. In this study, three coumarins are proposed as visible light-sensitive photoinitiators/photosensitizers for the cationic polymerization of epoxy monomer when combined with 4-isopropyl-4’methyldiphenyliodonium hexafluorophosphate. These coumarins have been specifically designed to act as photoinitiators for monomers upon visible irradiation. Good final reactive epoxy function conversions and also high rates of polymerization (Rp) were achieved in the presence of the newly proposed coumarin-based systems. The polymers generated from the cationic photopolymerization of epoxy monomers can be considered attractive candidates for 3D printing applications. The new proposed coumarins were also used for laser write experiments upon irradiation with a laser diode at 405 nm in order to develop new free-radical and cationic 3D printing systems for biomedical applications.
- Record ID
- CUT8044a1a57da44f0ab2ff6784d1b87598
- Publication categories
- ; ;
- Author
- Pages
- [152]
- Substantive notes
- Sesja: Medicinal Chemistry
- Miejsce wyd. i miejsce konf. wg siedziby org.
- Wydawca wg org. konf.
- Data wyd. wg daty konf.
- Book
- AMYC-BIOMED 2021 : 2nd Autumn Meeting for Young Chemists in Biomedical Sciences, 3-5 November 2021 – virtual conference : e-book of abstracts, 2021, [Naples], University of Naples Federico II, ISBN 978-88-94952-19-3
- Keywords in English
- 3D printing, cationic photopolymerization, free-radical photopolymerization
- URL
- https://amyc-biomed-2021.webnode.it/chi-siamo/ Opening in a new tab
- Related project
- Molecular design, 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/CUT8044a1a57da44f0ab2ff6784d1b87598/
- URN
urn:pkr-prod:CUT8044a1a57da44f0ab2ff6784d1b87598
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