Inside Cover: Acid‐catalyzed Disulfide‐mediated Reversible Polymerization for Recyclable Dynamic Covalent Materials (Angew. Chem. Int. Ed. 11/2023)

Acid is a catalyst for making and breaking poly(disulfide)s. In their Research Article (e202215329), Da-Hui Qu et al. report that the disulfide bonds of 1,2-dithiolanes can be activated by acid protonation, enabling a robust and protection-free methodology to prepare long polymers with chemical recyclability.