ABSTRACT This article describes the synthesis of new cyclic compounds able to react with amines to get nonisocyanate polyurethanes (NIPUs). The contribution of the most studied five-membered cyclic carbonate was compared to five-membered cyclic dithiocarbonate analogous and to a six-membered cyclic carbonate. Difunctional reactive species were obtained by a simple substitution reaction or an efficient thiol–ene coupling reaction. The ...
