화학공학소재연구정보센터
Macromolecules, Vol.43, No.13, 5554-5560, 2010
Surface-Initiated Ring-Opening Metathesis Polymerization of Pentadecafluorooctyl-5-norbornene-2-carboxylate from Variable Substrates Modified with Sticky Biomimic Initiator
A novel strategy is repotted to produce low surface energy poly(pentadecafluorooctyl-5-norboinene-2-carboxylitte) brushes (PNCA-F-15) on sui faces of variable metals and metallic oxides PNCA-F-15 brushes are grafted from bionmme catecholic mitiatoi via surface-initiated ring-opening metathesis polymerization at ambient conditions The blomimic catechohc mitiatol can assemble on a variety of substrates, such as Ti(TiO2), Al(Al2O3), steel. Au, Cu. Ag, and Zn, and on both nanoparncles and planat subsumes, allowing successful wafting of low surfao: energy polymei blushes Ii om these substrates The polymer blush modified substances were chili actenzed by thermogravimetric analysis. X-ray photoelectron spectioscopy, water contact angle measurements, and atomic force micioscopy The PNCA-F-15 brushes grow progressly with time with highly uniform surface coverage Very uniform polymer layer with the thickness II nm is obtained after 2 h polymenzation at 025 M monomer concentration Thermogravimetnc analysis shows the grafting amount of PNCA-F-15 is 39 3% (2 h) Upon graftn.g on rough surfaces, e g, electrochemically anodized alumina and titania, sum hydrophobicity and superoleophobicity in particular can be achieved, e g the PNCA-F-15 grafted rough TiO2 nanotubes films exhibit static...voter contact angle of 170