Synthesis of a novel isosorbide-based dental material with improved water sorption
| Autor: | Jin Ku Cho, Seunghan Shin, Sang Hyeup Lee, Jun Seok Kim, Hee Woong Park, Jung Hyun Lee |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Glycidyl methacrylate
Isosorbide Materials science Polymers and Plastics Composite number General Physics and Astronomy chemistry.chemical_element 02 engineering and technology 010402 general chemistry Methacrylate 01 natural sciences law.invention Viscosity chemistry.chemical_compound Magazine Flexural strength law Materials Chemistry medicine Composite material Organic Chemistry Barium 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry 0210 nano-technology medicine.drug |
| Zdroj: | European Polymer Journal. 112:629-635 |
| ISSN: | 0014-3057 |
| Popis: | We attempted to improve the low water resistance of isosorbide glycidyl methacrylate (IsoGMA), which was developed to replace bisphenol-A glycidyl methacrylate (BisGMA), a bisphenol-A based dental material. For this purpose, a new isosorbide-based methacrylate, isosorbide propyl methacrylate (IsoPMA), which has no hydroxyl groups, was synthesized. IsoPMA had low viscosity compared to IsoGMA (246.6 cP vs 6810 cP at 25 °C) and less water sorption when it was used as a binder of a composite (2.07 vs 28 μg/mm3). Although the flexural strength of the IsoPMA resin was much lower than that of IsoGMA (38.5 vs 74.2 MPa), the reinforcing effect by barium silicate on the flexural strength of IsoPMA was larger than that of IsoGMA (38.5 → 93.0 MPa for IsoPMA vs 74.2 → 78.6 MPa for IsoGMA) because fewer voids were formed. Unlike in the IsoGMA composite, no internal cracks were found in the IsoPMA composite after the water uptake experiment; its flexural strength decreased by 40% from the initial value, but was better than the flexural strength of IsoGMA, which decreased by 70%. |
| Databáze: | OpenAIRE |
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