Methods of modification of the surface of PTFE nanoparticles with a purpose to increase their hydrophilic properties

Abstract

The paper considers with three methods of modification of the surface of PTFE nanoparticles with a purpose to increase their hydrophilic properties: adsorption of esters of p-hydroxybenzoic acid; adsorption of branched fluorocarbon surfactant polymers containing perfluoroundecanoyoxy groups; and adsorption of fluorinated homopolymers and block copolymer. All three methods were analyzed in terms of their potential efficacy to provide a stable dispersion of sample of PTFE nanoparticles in polar solvents, and a preliminary conclusion that the method based on adsorption of fluorinated block copolymers containing blocks of pentafluorostyrene and acrylic acid seems to be most suitable for required purpose has been made.