TY JOUR TI METHOD FOR ASSESSING THE SUITABILITY OF PACKAGING POLYMERIC MATERIALS FOR MULTIPLE RECYCLING IN A CLOSED LOOP ECONOMY KW polymers KW packaging KW modeling of multiple processing KW complex aging index KW recycling JO Trade, service, food industry AU Chalykh, T.I. AU Kirsh, I.A. AU Gubanova, M.I. AU Beznaeva, O.V. AU Ovsyannikov, S.A. PY 2025 IS 5 PB Siberian Federal University