Study on the double fluorinated modification of the acrylate latex

Double fluorinated acrylate latex (DFAL) has been successfully prepared by macromolecule reaction between m-trifluoromethylphenylamine (m-TFMPA) and the single fluorinated acrylate latex (SFAL), which is prepared by semi-continuous seeded emulsion polymerization of butyl acrylate (BA), methyl methacrylate (MMA) 2-(perfluoro-(1,1-bis-isopropyl)-2-propenyl)oxyethyl methacrylate (POMA) and glycidyl methacrylate (GMA). The resultant DFAL is characterized by Fourier transform infrared (FTIR) spectrometry, contact angle determinator, dynamic light scattering detector and thermo-gravimetric analysis (TGA). Results show that the contact angle of DFAL film is improved in comparison with that of SFAL film. The surface properties especially the contact angle of the film with annealing have been improved greatly because more fluorine atom is introduced into the molecule of acrylate latex and moves to the surface of the film. However, the thermal stability of the DFAL film is not improved.