Sequentially bridging anionic addition and ring-opening polymerization by cooperative organocatalysis: well-defined block copolymers from methacrylates and cyclic esters

Facile synthesis of well-defined block copolymers from “one-pot” sequential copolymerization of (meth)acrylates and cyclic esters were achieved by the optimal t -BuP 4 /(thio)ureas cooperative catalyst.