OPTIMIZATION OF MICROWAVE PLASMA TREATMENT CONDITIONS ON POLYDIMETHYLSILOXANE FILMS FOR FURTHER SURFACE FUNCTIONALIZATION

Abstract Polydimethylsiloxane (PDMS) was surface functionalized by a 3-steps process. Firstly, the PDMS surface was activated by means of a microwave Ar/O2 plasma treatment, that was optimized in this paper. Secondly, the activated surface reacted with mercaptosilanes and finally a thiol-ene photopolymerization of a vanillin derivative monomer was performed. The bio-based monomer was used with the aim of giving antibacterial and antifouling properties to the PDMS surface. Grafting and photopolymerization were successfully evidenced by different analytical means and especially X-Ray Photoelectron Spectroscopy