ABSTRACT
Polyurethane elastomers (PUEs) are of great practical importance in various fields [1]. In particular, in developing PUE of molding compositions for sports and roofing, the liquid rubbers (oligomers) of diene nature with a molecular weight of 2000-4000 are widely used as a polyol component. Usually, these are homopolymers of butadiene and isoprene, which are the products of copolymerization of butadiene with isoprene or butadiene with piperylen and isocyanate prepolymers based on these oligomers.
