Syntheses and Evaluation of Polyfunctional Monomers with Acrylate and Methacrylate Groups : Application to Visible Light-cured Resins

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  • ARAKANE Mitsuo
    Division of Organic Materials, Institute for Medical and Dental Engineering, Tokyo Medical and Dental University

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  • アクリル基とメタクリル基を有する多官能性モノマーの合成と評価 : 可視光線重合型レジンへの応用

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To improve the heterogeneities of visible light-cured composite resins, acrylate-methacrylate monomers containing an acryloyl and a mathacryloyl group in a monomer were synthesized.Using UDMA as a base monomer, mechanical properties and residual carbon-carbon double bonds of acrylate-methacrylate were compared with those of dimethacrylate and diacrylate.Visible light-cured composite resins with acrylate-methacrylate had stronger mechanical properties than those of corresponding dimethacrylate, whereas unfilled resins cured by visible light had similar mechanical properties.Unfilled resin of triethylene glycol diacrylate(TriEDA)had significantly lower mechanical properties, but TriEDA gave the highest visible light-cured composite resin.The mechanical properties of visible light-cured composite resin with triethylene glycol acrylate methacrylate(TriEAMA)were comparable to those prepared by heat-cure, while the light-cured triethylene glycol dimethacrylate(TriEDMA)-composite resin had weaker mechanical properties than the heat-cured resin.The number of residual carbon-carbon double bonds in TriEAMA-unfilled resin cured by visible light was much smaller than that in TiEDMA.It is concluded that acrylate-methacrylate is useful for visible light-cured dental resins.

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