TY JOUR TI THE PROSPECT OF USING AN OLIGOMER FROM PETROCHEMICAL BY-PRODUCTS MODIFIED WITH SECONDARY POLYSTYRENE FOAM TO PROTECT WOOD MATERIALS KW waste KW modification KW oligomers KW processing KW wood materials KW water absorption KW formability JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Vostrikova, G.Y. AU Nikulina, N.S. AU Nikulin, S.S. PY 2019 IS 4 PB Belgorod State Technological University named after V.G. Shukhov