Hydrophobic coating of surfaces by plasma polymerization in an RF plasma reactor with an outer planar electrode: synthesis, characterization and biocompatibility
Karaman, Mustafa and Gursoy, Mehmet and Aykul, Fatmanur and Tosun,
Zahide and Kars, M. Demirel and Yildiz, H. Bekir
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Abstract
This paper presents the plasma polymerization of poly(hexafluorobutyl
acrylate) (PHFBA) thin films on different substrates in an RF plasma
reactor with an outer planar electrode. This reactor configuration
allows. large area uniformity and fast processing times. Deposition
rates of up to 60 nm min(-1) were observed. The influence. of plasma
power and substrate temperature on the. deposition rate, structure and
wettability of the as-deposited films was. investigated. It was observed
that better hhydrophobicity was obtained at high plasma power and in low
temperature conditions. PHFBA thin films deposited on electrospun
poly(acrylonitrile) fiber mats under such conditions resulted in
superhydrophobic surfaces with. contact angle values greater than 150
degrees. In. vitro cell studies using human epithelial cells
demonstrated the non-toxic nature of the. plasma-polymerized PHFBA
films.... Show more Show less