Surface difference of novel fluorinated polyacrylate latex prepared with different surfactants

Abstract

The novel fluorinated polyacrylate latex was successfully prepared by emulsion polymerisation of perfluorononylene allyl ether (PFAE) with butyl acrylate (BA) and methyl methacrylate (MMA) initiated by potassium persulphate (KPS) in the water with different surfactants. PFAE was synthesised from the intermediate perfluoro nonene and 3-allyl alcohol as staring reactants. Films of the novel fluorinated polyacrylate latex were prepared by coating the latex directly on the clean glass sheet and allowed to dry at 80°C in a bake oven. The structure of the novel fluorinated polyacrylate latex was investigated by Fourier transform infrared spectrometry. Surface difference of novel fluorinated polyacrylate latex prepared with different surfactants was studied. Results show that the latex prepared with sodium dodecyl benzene sulphonate surfactant has smaller particle size, contact angle and lower surface tension. The latex prepared with sodium 2-hydroxy-3-(methacryloyloxy) propane-1-sulphonate surfactant has larger particle size, higher surface tension and larger contact angle.