biostudies-literatureKumar SKorean governmentNRFNational Research Foundation of KoreaKISTe202500967https://www.ebi.ac.uk/biostudies/studies/S-EPMC12272017biostudies-literatureUnknown31(40)Dynamic disulfide bonds offer a promising avenue for developing robust and reversible photocatalysts. This study introduces a novel polymer, Poly-SS, designed for heterogeneous thiyl radical photocatalysis, leveraging the dynamic nature of disulfide linkages. Poly-SS features linear disulfide-containing polymers grafted onto a polyvinyl backbone, combining the photoactivity of disulfide with the structural integrity of polyvinyl. This design facilitates efficient thiyl radical generation upon photoirradiation, enabling challenging organic transformations. Poly-SS demonstrates exceptional photocatalytic efficiency for the aerobic oxidation of diarylalkynes to 1,2-diketones, achieving >99% conversion. The polyvinyl backbone plays a crucial role in maintaining polymer recyclability by promotiChemistry (Weinheim an der Bergstrasse, Germany)Grafted Disulfide-Linked Linear Polymers for Heterogeneous Thiyl Radical Photocatalysis.PMC122720172022H1D3A2A02044860RS-2024-003366482E33631Park JByun JCho HYBayarkhuu BKumar SfalseGrafted Disulfide-Linked Linear Polymers for Heterogeneous Thiyl Radical Photocatalysis.Dynamic disulfide bonds offer a promising avenue for developing robust and reversible photocatalysts. This study introduces a novel polymer, Poly-SS, designed for heterogeneous thiyl radical photocatalysis, leveraging the dynamic nature of disulfide linkages. Poly-SS features linear disulfide-containing polymers grafted onto a polyvinyl backbone, combining the photoactivity of disulfide with the structural integrity of polyvinyl. This design facilitates efficient thiyl radical generation upon photoirradiation, enabling challenging organic transformations. Poly-SS demonstrates exceptional photocatalytic efficiency for the aerobic oxidation of diarylalkynes to 1,2-diketones, achieving >99% conversion. The polyvinyl backbone plays a crucial role in maintaining polymer recyclability by promoti2025-01-01T00:00:00Z2025 Jul2026-03-31T10:51:07.079Z2025-08-28T03:05:54.32ZS-EPMC122720174041479610.1002/chem.202500967