Cover Picture: Aqueous Ring‐Opening Polymerization‐Induced Self‐Assembly (ROPISA) of N‐Carboxyanhydrides (Angew. Chem. Int. Ed. 2/2020)

Polymerization‐induced self‐assembly is a facile approach for accessing polymeric nanoparticles based on amphiphilic polymers at high concentration and in a scalable fashion. In their Communication on page 622, S. Lecommandoux, C. Bonduelle, and co‐workers present the use of aqueous ring‐opening polymerization‐induced self‐assembly (ROPISA) of N‐carboxyanhydrides to prepare well‐defined amphiphilic diblock copolymers that simultaneously form anisotropic nanostructures.