SEARCH Articles Figures Tables Anionic ring-opening polymerization cyclic ester Cyclic ester polymerization Cyclic esters Cyclic esters, ring-opening Cyclic polymerization Cyclic ring-opening polymerizations Ester polymerization Polymeric esters RING-OPENING POLYMERIZATION OF CYCLIC ESTERS Ring cyclic esters Ring-Opening Polymerization of Cyclic Esters (Lactones)