Inside Cover: Covalent Scrambling in Porous Polyarylthioethers through a Stepwise SNAr for Tunable Bandgap and Porosity (Angew. Chem. Int. Ed. 28/2023)

A polycondensation reaction constitutes the simplest route to generating porous poly(aryl thioether)s. Through a multi‐para‐nucleophilic substitution of perfluoroaromatic compounds with sodium sulfide, temperature‐dependent formation of thioether linkages leads to stepwise transition of the polymers into network structures with controllable porosity and bandgap, as reported by Jeehye Byun, Sheng Li, Cafer T. Yavuz, and co‐workers in their Research Article (e202304378).