TY JOUR TI PHOTODEGRADATION OF SEMI-CRYSTALLINE POLYLACTIDE UNDER THE UV RADIATION: II. STAGES OF MATRIX TRANSFORMATION ACCORDING TO THE DSC METHOD KW HETEROPHASE POLYLACTIDE KW THE PHASES PHOTO TRANSFORMATION FEATURES KW PHOTO ANNEALING EFFECT JO Herald of Technological University AU , .. AU , .. AU Usachev, S.V. AU Koverzanova, E.V. AU Arcis, M.I. AU , .. PY 2026 IS PB Kazan National Research Technological University