<i>o</i>-Benzenedisulfonimide as a recyclable cationic organocatalyst for the controlled/living ring-opening polymerization of δ-valerolactone and ε-caprolactone

Abstract

A safe, recyclable, and water-tolerant Brønsted acid <italic>o</italic>-benzenedisulfonimide (OBS) catalyzed ROP of lactones in a living/controlled manner.