The effect of a dithiol spiroorthocarbonate on mechanical properties and shrinkage of a dental resin
| Autor: | Amy Grace Savage Gómez, Ricardo Acosta Ortiz, Aida E. Garcia Valdez, María Lydia Berlanga Duarte |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Materials science
Polymers and Plastics General Chemical Engineering Cationic polymerization Dithiol General Chemistry UDMA chemistry.chemical_compound Photopolymer Monomer Polymerization chemistry visual_art Polymer chemistry Materials Chemistry visual_art.visual_art_medium Fourier transform infrared spectroscopy Acrylic resin |
| Zdroj: | Designed Monomers and Polymers. 18:73-78 |
| ISSN: | 1568-5551 |
| DOI: | 10.1080/15685551.2014.947555 |
| Popis: | A novel spiroorthocarbonate with two thiol groups (SOC DITHIOL) was synthesized. This monomer was formulated with dimethacrylate monomers used in dental resins and photopolymerized with an LED dental lamp. The presence of the thiol groups in the monomer enabled it to react with the double bonds of the dimethacrylate monomers by means of the thiol–ene mechanism. Additionally, the SOC DITHIOL underwent cationic ring-opening polymerization, producing the corresponding poly(ether-carbonates). SOC DITHIOL was added to a formulation of a conventional acrylic resin, which includes a mixture of dimethacrylate monomers [glycerolate bisphenol A dimethacrylate (BIS-GMA)/urethane dimethacrylate (UDMA)/triethyleneglycol dimethacrylate (TEGDMA)] in 50/30/20 M ratio). Concentration of the prepared SOC was varied in the above dimethacrylate formulation in the range of 5–30 mol%. Kinetics of photopolymerization were determined by means of real time Fourier transform infrared spectroscopy, finding that increasing concentra... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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