TY JOUR TI EVALUATION OF KINETIC PARAMETERS OF THERMAL-OXIDATIVE DESTRUCTION OF POLYMERIC MATERIALS FOR SOLVING PROBLEMS OF FIRE-TECHNICAL EXPERTISE KW thermal-oxidative destruction KW thermoplastic polymers KW thermogravimetric analysis KW activation energy KW secondary fire sources JO Problems of risk management in the technosphere AU Bezzaponnaya, O.V. PY 2025 IS 2025 PB Saint-Petersburg University of State Fire Service of Emercom of Russia