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首页> 外文期刊>Journal of Applied Polymer Science >Biobased isosorbide methacrylate monomer as an alternative to bisphenol A glycerolate dimethacrylate for dental restorative applications
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Biobased isosorbide methacrylate monomer as an alternative to bisphenol A glycerolate dimethacrylate for dental restorative applications

机译：Biobased isosorbide methacrylate monomer as an alternative to bisphenol A glycerolate dimethacrylate for dental restorative applications

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In this study, a new biobased isosorbide urethane methacrylic monomer isosorbide-derived urethane dimethacrylate (Is-UDMA) was evaluated as a replacement for currently used bisphenol A glycerolate dimethacrylate (Bis-GMA) based dental restorative materials. Dental composites were prepared at different Is-UDMA and Bis-GMA concentrations. For these composites, the photocuring kinetics, volumetric shrinkage, viscoelastic properties, water sorption, and solubility were evaluated. The photocuring kinetics, followed by real-time IR spectroscopy, showed higher double-bond conversion (DC) values for the formulations containing the Is-UDMA monomer; the highest DC (82) was achieved by the formulation prepared with only the Is-UDMA monomer. The volumetric shrinkage was reduced to 23.7 as compared with the dental resin formulated with Bis-GMA. The viscoelastic properties of the formulations containing both Is-UDMA and Bis-GMA monomers in a 50: 50 composition were superior to the rest of the tested formulations, including those prepared with pure polymers. This behavior was explained in terms of a compromise between cross-linking and rigidity (or flexibility) of the resulting polymer network. A preliminary test on microleakage in a dental enamel demonstrated that the new Is-UDMA monomer is a potential replacement for the Bis-GMA monomer in dental restorative materials. (C) 2016 Wiley Periodicals, Inc.

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