EUROPEAN POLYMER JOURNAL, vol.157, 2021 (Peer-Reviewed Journal)
Article / Article
EUROPEAN POLYMER JOURNAL
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Quaternary ammonium, ROMP, Photo, Grafting to , PDMS, Bactericidal , Thiol-ene, BLOCK-COPOLYMERS, STAPHYLOCOCCUS-AUREUS, POLY(ETHYLENE GLYCOL), SILICONE, ANTIBACTERIAL, POLY(DIMETHYLSILOXANE), IMMOBILIZATION, POLYMERS, COATINGS, FACILE
Cationic ROMP-polymers bearing ammonium or phosphonium groups were photo-grafted onto a PDMS surface via the thiol-ene click reaction, in the presence of benzophenone. The PDMS surface was first thiolated using pentaerythritol tetrakis (3-mercaptopropionate) (PTTMP) under UV, in the presence of benzophenone. The obtained cationic surfaces exhibited charge densities above 1014 charge/cm2 and a higher degree of hydrophilicity compared to non-grafted surfaces. The live and dead tests performed by fluorescence microscopy revealed an effective contact bactericidal effect of these surfaces against Escherichia coli and Staphylococcus epidermidis.