SYNTHESIS AND MECHANICAL PROPERTIES OF GRADIENT POLYURETHANE ISOCYANURATE POLYMER COMPOSITES BASED ON OLIGOTETRAMETHYLENE GLYCOL

摘要

The synthesis via polycyclotrimerisation and migration polymerisation of gradient polyurethane isocyanurate polymeric materials based on an oligooxytetramethylene glycol, 2,4-toluene diisocyanate and a diamine, di(3-chloro-4-aminophenyl)methane, was investigated by FTIR and potentiometric titration. The products were characterised by Brinell hardness, elastic modulus, impact strength and flexural strength, and the effects of the proportion of polyurethane and polyisocyanurate components on the mechanical properties of the products are discussed. 10 refs. (Article translated from Plasticheskie Massy, No.2, 2008, pp.22-25)