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Catechol and spiropyran functional groups were conjugated to a polymer backbone, allowing immobilization on polystyrene beads (PS beads). The final product was capable of stably reproducing the optical properties of spiropyran. Through the outstanding surface adhesion properties of the catechol functional group, spiropyran was immobilized on PS beads. Switchable photoluminescence in the spiropyran...
A universal method to modify polystyrene beads (PSBs) is proposed, using the 2‐chloro‐3′,4′‐dihydroxyacetophenone (CCDP) quaternized to poly(ethylene glycol)‐g‐poly(dimethylaminethyl methacrylate) [PEG‐g‐PDMA, QC‐PEG]. In the study, CCDP of QC‐PEG is adhered onto PSBs under alkali condition, where polyvinyl pyrrolidone (PVP) has been added as stabilizer. The surface modified PSBs with QC‐PEG (QC‐PSBs)...
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