Visible light-curing polymer composites characterised by reduced polymerisation shrinkage
Authors:
- Monika Topa Skwarczyńska,
- Andrzej Świeży,
- Bartosz Oksiuta,
- Małgorzata Noworyta,
- Paweł Jamróz,
- Weronika Wałczyk,
- Joanna Ortyl
Abstract
The most commonly used photo-cured dental materials are dimethacrylic compounds, which guarantee the production of high crosslinking networks. Nevertheless, these monomers are characterised by significant polymerisation shrinkage, which is not unfavourable for the dental industry. It is well known that cationic monomers have a very low polymerisation shrinkage. [1-3] Therefore, in our work, we believed that the use of photocurable systems containing more than one type of monomer with different polymerisation mechanisms is an interesting alternative for conventional free-radical cross-linking dimethacrylates organic matrix. Dual cure formulations based on a combination of cationic monomer and free-radical-type monomer can form interpenetrating networks to adjust the photopolymerisation rate and cross-linking density suitable and; therefore, control the final properties for dental applications. The main advantage of these Interpenetrating polymer network (IPN) is that they combine the properties of the two kinds of polymer network. The photocured, interpenetrating polymer networks seem to be a promising way to obtain photocurable polymeric materials characterized by improved properties, such as high-damping effect, lower shrinkage upon photopolymerisation and better adhesion properties. In our work, spectroscopic studies of photoinitiators were presented and heat flow studies were carried out using the Photo-DSC 204 F1 Phoenix® apparatus. In addition, the polymerisation shrinkage of the composites was determined using the Modular Compact Rheometer MCR302e. Our results confirm that dual-cure composites based on a combination of a cationic polymerising monomer and a free radical polymerising monomer can form interpenetrating networks and exhibit lower polymerisation shrinkage than standard dental composites.
- Record ID
- CUT380fc66666cb4366ba07a025f18a631c
- Publication categories
- ; ;
- Author
- Pages
- 69
- Other elements of collation
- Bibliografia (na s.) - 69; Bibliografia (liczba pozycji) - 3
- Substantive notes
- Tyt. źródła wg okł.
- Data wyd. wg roku konf.
- Book
- 7th European Symposium of Photopolymer Science, September 19-22, 2022, Istanbul, Turkey : abstract book, 2022, [Istanbul], [Istanbul Technical University]
- Keywords in English
- photopolymerisation, polymerisation shrinkage, IPN, dental composites
- URL
- https://esps2022.org/abstracts/ Opening in a new tab
- Related project
- Opracowanie i ocena właściwości fizykochemicznych i mechanicznych nowych fotoutwardzalnych w świetle widzialnym kompozytów polimerowych charakteryzujących się redukcją skurczu polimeryzacyjnego. . Project leader at PK: , ,
- Language
- eng (en) English
- License
- Score (nominal)
- 0
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT380fc66666cb4366ba07a025f18a631c/
- URN
urn:pkr-prod:CUT380fc66666cb4366ba07a025f18a631c
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.