TY JOUR TI KW октен-1 KW α-олефины KW олигомеризация KW полиэтилен KW octene-1 KW α-olefin KW oligomerization KW polyethylene JO Herald of Technological University AU , .. AU , .. AU , .. AU , .. PY 2025 IS 15 PB Kazan National Research Technological University