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Cure performance of multifunctional monomers to photo-initiators: a thermoanalytical study onbis-GMA-based resins

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Abstract

In order to assess cure performance in experimental monomer systems containingbis-GMA and 3G, differential scanning calorimetry was used to obtain heat for curing, and residual monomers present within the resin systems were measured by high-performance liquid chromatography. Visible light-activated polymerization of these monomer systems was studied using camphorquinone (CQ) and reducing agents of dimethylaminoethyl methacrylate (DMAEMA) and dimethyl-para-toluidine (DMPT). For unfilledbis-GMA-based resin (60 wt%bis-GMA and 40 wt% 3 G) containing CQ (0.5 wt%) and DMAEMA (0.5 wt%) indicating approximately 100% polymerization, less residual monomer and larger hardness than the other monomer systems were observed.

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Urabe, H., Wakasa, K. & Yamaki, M. Cure performance of multifunctional monomers to photo-initiators: a thermoanalytical study onbis-GMA-based resins. J Mater Sci 26, 3185–3190 (1991). https://doi.org/10.1007/BF01124661

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Keywords

  • Differential Scanning Calorimetry
  • DMAEMA
  • Residual Monomer
  • Knoop Hardness
  • Camphorquinone