TY JOUR TI INFLUENCE OF EXTERNAL ALKOXYSILANE DONORS ON THE STEREOSPECIFICITY AND KINETICS OF PROPYLENE POLYMERIZATION KW POLYPROPYLENE KW ZIEGLER-NATTA CATALYSTS KW EXTERNAL DONORS KW ALKOXYSILANES KW STEREOSPECIFICITY KW ISOTACTICITY KW POLYMERIZATION KINETICS JO Herald of Technological University AU Muravlev, D.V. AU Muravlev, D.V. AU Sazonov, O.O. AU , .. PY 2026 IS 29 PB Kazan National Research Technological University