Visible Light‐Induced Polymerization to Access Polyamides

Abstract Visible light‐induced polymerization, as a promising and green strategy, is showing great potential in preparing value‐added polymers. Herein, a visible light photoredox catalysis method is reported to afford a library of polyamide with high yields (up to 99%) and high molecular weights ( M w s) (up to 71 000 g mol −1 ). Dithioacids and diamines as the monomers, and 9‐mesityl‐10‐methylacridinium tetrafluoroborate (Mes‐Acr‐MeBF 4 ) as the organic photoredox catalyst give the polyamides with structural diversity in air under mild conditions without extra metal, base, or additives.