Synthesis and Structural Characterization of Novel Urethane-Dimethacrylate Monomer with Two Quaternary Ammonium Groups †

Composite restorative materials with dimethacrylathe matrices are commonly used as dental fillings. They have good usable properties; however, they lack antibacterial activity. They may also promote secondary caries. A solution to that problem could be the application of monomers with microbiologically active quaternary ammonium groups. This research aimed at the synthesis of a new urethane-dimethacrylate monomer with a 1,3-bis(2-isocyanatopropan-2-yl)benzene (TMXDI) core, as well as two arms with quaternary ammonium group with the decyl subsistent. The structure of the obtained monomer was confirmed via FTIR and ¹H and ¹³C NMR spectroscopies.