Experimental Data on the Study of the Formation Processes of Polyepoxyurethane Isocyanurates. Part 1

Abstract

The possibility of using a computational scheme to describe the glass transition temperature and other physical and mechanical properties of synthesized polyepoxyurethanisocyanurates is considered. Modification of the chemical structure of these polymers by purposeful selection of initial components and development of synthesis stages leads to the production of materials with improved thermal and mechanical properties. At the first stage, a urethane prepolymer was obtained by reacting polyoxytetramethylene glycol (PMG) with 2,4-toluene diisocyanate (TDI). At the second stage, the epoxy resin reacts with TDI to produce isocyanatourethane prepolymers. The products of the reactions of the 1st and 2nd stages interact with the formation of an oligomeric isocyanurate structure, which, with increasing temperature, is converted into a mesh polymer.