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

A scrambled but selective polycondensation reaction introduced the simplest route to generate 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 et al. in their Research Article (e202304378).