Yilmaz, KurtulusGursoy, MehmetKaraman, Mustafa2026-04-102026-04-1020260300-94401873-331Xhttps://hdl.handle.net/20.500.13091/13165https://doi.org/10.1016/j.porgcoat.2026.110112Hydrophobic pressure-sensitive adhesive (PSA) thin films were fabricated using the initiated chemical vapor deposition (iCVD) method based on copolymers of 2-ethylhexyl acrylate (EHA) and 2,2,3,4,4,4-hexafluorobutyl acrylate (HFBA). Increasing the HFBA content enhanced hydrophobicity, achieving a maximum water contact angle of 161 degrees with a surface roughness below 10 nm, indicating that fluorinated surface chemistry predominantly governs wettability. The films exhibited strong adhesive performance, with shear strength reaching over 200 N/cm2 and 180 degrees peel strength exceeding 0.70 N/cm. Water immersion tests demonstrated that fluorine-rich compositions maintained significantly higher adhesion, showing minimal loss in both shear and peel strength after 24 h of exposure. SEM analysis confirmed uniform and conformal coating of porous bamboo fabrics without altering their microstructure, while underwater adhesion experiments evidenced stable bonding capability in aqueous environments. Overall, composition-controlled P(EHA-co-HFBA) thin films produced by iCVD offer tunable hydrophobicity, strong adhesion, and improved water resistance, making them promising candidates for moisture-tolerant PSA applications.eninfo:eu-repo/semantics/closedAccessIcvdThin FilmCoatingHydrophobicPSAArticle10.1016/j.porgcoat.2026.110112