Synthesis and polymerization of vinylcyclopropanes bearing urethane groups for the development of low-shrinkage composites

•Synthesis of seven vinylcyclopropanes bearing urethane groups.•Determination of polymerization rates using Photo-DSC.•Evaluation of the rheological behavior using real time-NIR-photorheology.•Formulation and characterization of innovative low-shrinkage dental composites.•Influence of the urethane group on the mechanical properties of the tested composites.