Grafted Disulfide-Linked Linear Polymers for Heterogeneous Thiyl Radical Photocatalysis.

ABSTRACT: 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 promoti

SUBMITTER: Kumar S 

PROVIDER: S-EPMC12272017 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature