TY JOUR TI CONSTRUCTION OF A MODEL OF THE ETHYLENE POLYMERIZATION PROCESS IN AN AUTOCLAVE REACTOR WITH A STIRRER KW autoclave chemical reactor KW mathematical model of ethylene polymerization reactor JO Modern Technologies and Scientific and Technological Progress AU Istomin, A.L. AU Krivov, M.. AU Istomina, A.A. PY 2023 IS 2023 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»