Preparation of bactericidal PDMS surfaces by benzophenone photo-initiated grafting of polynorbornenes functionalized with quaternary phosphonium or pyridinium groups

Lou Y., Schapman D., Mercier D., Suer N. C., EREN T., Thebault P., ...More

EUROPEAN POLYMER JOURNAL, vol.157, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 157
  • Publication Date: 2021
  • Doi Number: 10.1016/j.eurpolymj.2021.110669
  • Journal Name: EUROPEAN POLYMER JOURNAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, INSPEC, Metadex, Civil Engineering Abstracts
  • Keywords: Quaternary ammonium, ROMP, Photo, Grafting to&nbsp, PDMS, Bactericidal&nbsp, Thiol-ene, BLOCK-COPOLYMERS, STAPHYLOCOCCUS-AUREUS, POLY(ETHYLENE GLYCOL), SILICONE, ANTIBACTERIAL, POLY(DIMETHYLSILOXANE), IMMOBILIZATION, POLYMERS, COATINGS, FACILE
  • Yıldız Technical University Affiliated: Yes

Abstract

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.