Fig. 1: Synthetic process of POx-b-PCE block copolymer.
From: Cationic-anionic synchronous ring-opening polymerization

A Traditional synthetic strategy that uses a multi-step process. B A polymerization method that cationic ring-opening polymerization of Ox and anionic ring-opening polymerization of CE are performed simultaneously on both ends of the same chain. There is a dynamic equilibrium between high-ionic active species and low-ionic dormant species at the propagation ends, which can effectively suppress the coupling of anionic and cationic propagation ends.