LOW SHRINKAGE AND LOW STRESS DENTAL COMPOSITIONS

摘要

Free radical polymerizable macrocyclic compounds are needed for a wide range of problems in many different fields such as microelectronics, coatings and restorative dentistry. Production of such compounds under mild conditions is desirable. A polymerizable macrocyclic oligomer composition with at least one (meth)acrylate polymerizable group is described. A process for obtaining the polymerizable macrocyclic oligomer includes preparing an activated precursor of an oligomer under pseudo high-dilution conditions. The process also includes preparing an activated precursor of an oligomer with at least one (meth)acrylate by reacting the precursor with an activated coupling agent, wherein the precursor is condensable and polymerizable. Compositions comprising the macrocyclic polymerizable oligomer obtained by the described process and uses of the polymerizable macrocyclic oligomer in restorative dentistry are also described.