TY JOUR TI PROPERTIES OF COMPOSITE MATERIALS ON THE BASIS OF MIXTURES OF EPOXY POLYMERS AND OLIGOSULFONES. PART 1. THERMOMECHANICAL PROPERTIES KW epoxy resin KW hardener KW oligosulfone KW modification KW thermomechanical properties KW glass transition temperature JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Kochergin, Y.S. AU Grigorenko, T.I. AU Zolotareva, V.V. PY 2018 IS 3 PB Belgorod State Technological University named after V.G. Shukhov