SEARCH Articles Figures Tables Catalyzed polymerization Catalyzed ring-opening polymerization Metal catalyzed ring opening Metal metathesis Metal polymerization Metal rings Metal-catalyzed polymerization Metallocenophane Metallocenophanes Metals ring-opening polymerization Metathesis polymerization Open transition ROMP ROMP (Ring-opening metathesis Ring metathesis Ring metathesis polymerization Ring opening polymerization metal catalyzed Ring-opening metathesis Ring-opening metathesis polymerization ROMP) Ring-opening polymerization metallocenophanes Transition metal catalyzed Transition metal rings Transition metal-catalyzed polymerization