SEARCH Articles Figures Tables A polymerization A routes A-ring opening METALLIZATION OF POLYMERS Metal polymerization Metal rings Metallocenophane Metallocenophanes Metals ring-opening polymerization New route Open transition Polymer , transition metal Polymer ring opening Polymer ring-opening polymerization Polymer route Polymeric bases Polymerization route) Ring polymer Ring-Opening Polymerization Routes Ring-opening polymerization metallocenophanes Transition metal rings Transition polymer