Study on ultrasliding surface of fluorinated block copolymer for coating

Abstract

In this study, poly(hexafluorobutyl methacrylate) (PHFBMA) was prepared by atom transfer radical polymerization (ATRP). Then, a diblock copolymer of poly(hydroxyethyl methacrylate)-poly(hexafluorobutyl methacrylate) was synthesized by ATRP using PHFBMA as a macroinitiator and hydroxyethyl methacrylate (HEMA) as a monomer. The structures and composition of the diblock copolymer were verified via infrared spectroscopy, nuclear magnetic resonance (NMR), and gel permeation chromatography (GPC). An amphiphilic diblock copolymer was used to construct a porous membrane using breath figures. The surface morphology of the film was observed by polarized light and field scanning electron microscopy. The hydrophobicity of the porous film was tested using contact angle and dynamic contact angle measuring instruments. With this hydrophobic porous membrane, perfluoropolyether oil was infused for surface modification. The data obtained indicated that the anti-icing and antibacterial properties of the hydrophobic porous membrane improved well after the infusion of the perfluoropolyether oil.