Polyurethanes based on derivatives of bicyclic bisureas, hexamethylenediisocyanate and adipic acid

Abstract

The present work is devoted to the research of possibility of bicyclic bisureas fragments inclusion in polyure- thane polymer structure and, as a consequence, improvement of mechanical properties of known polyurethane polymers. The most convenient from stereometric point of view linear monomers such as adipic acid and hexamethylenediisocyanate were chosen for interaction with bicyclic monomer, namely tetra-N- methylolglycoluril. The optimal conditions of tetraol preparation were found and influence of various factors on its efficiency was shown. Polyurethanes were synthesized by step-growth polymerization, molar masses of polymers synthesized were determined, and some physical& mechanical properties were studied.