Synthesis of Fluorinated Acrylate Ternary Copolymer Latex by Miniemulsion Polymerization and Characterization

Using SDS and AEO-9 as the emulsifiers,stable fluoroacrylate ternary copolymer emulsion were made by miniemulsion polymerization with fluoroacrylate(FA),butyl acrylate(BA),methyl methacrylate(MMA) as the monomers.The composition of copolymer were demonstrated by FT-IR and 1H NMR.The influences of ultrasonic power,ultrasonic time,FA content and emulsifier dosage on emulsion particle size and its distribution index were investigated and the surface property of films was studied by Wilhelmy method.Ultrasonic power was 300W,ultrasonic time was 3min,emulsifier dosage was 2.5wt% and the fluorine content was more than 4wt% which were the better miniemulsion polymerization process in this work;Some properties of fluoroacrylate copolymer latex of miniemulsion were improved,The prepared polymer emulsion membrane had excellent hydrophobic and oleophobic property with low fluorine content.