The Synthesis and Characterization of a Novel Water-Borne and Core-Shell Structure Fluorinated Acrylic Polymer

The synthesis and characterization of a novel core-shell structure and water-borne fluorinated acrylic polymer was carried out in this paper by the semi-continuous seed emulsion polymerization.Butyl acrylate(BA) served as the core,methyl methylacrylate(MMA) and methyl dodecafluorinacrylate(Actyflon-G0,C_(11)H_8O_2F_(12)) served as the shell of copolymer.The mixed emulsifier of sodium lauryl sulfate(SDS) and octyl-phenyl poly-oxyethylene(OP-10) was used in the ration of OP-10/ABS=2∶1 in order to play the cooperation of the static exclusion and space block effect.Fourier transform infrared spectrometry(FT-IR),Scanning electron microscopy coupled with energy(SEM-EDX),Transmission electron microscopy(TEM) as well as Differential scanning calorimetry(DSC) were used for characterizing the morphology structure,particle size and the effect of fluorinated monomer content and emulsifier content to the properties of coating. The results indicate that the copolymer presents a core-shell structure of 40 nm~50 nm in diameter.The polymer emulsion in 30% Actyflon-G04 content performs favorable filming characteristics.