We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Highly Efficient Photoinitiation Systems Based on Dibenzo[a,c]phenazine Sensitivity to Visible Light for Dentistry.
- Authors
Pyszka, Ilona; Jędrzejewska, Beata
- Abstract
In this work, photoinitiation systems based on dibenzo[a,c]phenazine sensitivity to visible light were designed for their potential application in dentistry. Modification of the structure of dibenzo[a,c]phenazine consisted of introducing electron-donating and electron-withdrawing substituents and heavy atoms into position 11. The synthesized compounds are able to absorb radiation emitted by dental lamps during photoinitiation of the polymerization process. In the presence of acrylates, dibenzo[a,c]phenazines show excellent photoinitiating abilities in systems containing an electron donor or a hydrogen-atom donor as a second component. The developed systems initiate the polymerization process comparable to a commercial photoinitiator, i.e., camphorquinone. Moreover, the performed studies showed a significant shortening of the polymerization time and a reduction in the amount of light absorber. This indicates that polymeric materials are obtained at a similar rate despite a significant reduction in the concentration of the newly developed two-component photoinitiating systems.
- Subjects
VISIBLE spectra; PHENAZINE; CHEMICAL synthesis; ELECTRON donors; POLYMERIZATION; DENTISTRY; HEAVY ions
- Publication
Materials (1996-1944), 2024, Vol 17, Issue 11, p2597
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma17112597