TY JOUR TI REGULATION OF PROPERTIES OF EPOXY POLYMERS BASED ON DIPHENYLOLMETHANE USING OLIGOBUTADIENE RUBBER WITH TERMINAL CARBOXYL GROUPS KW epoxy polymer KW diglycidyl ether of diphenylolmethane KW hardener KW oligobutadiene rubber with terminal carboxyl groups KW curing mode KW deformation-strength and adhesive properties JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Kochergin, Y.S. AU Zolotareva, V.V. PY 2020 IS 5 PB Belgorod State Technological University named after V.G. Shukhov