Synthesis and characterization of the polyacrylate latex functionalized by fluorine and silicon
AbstractNovel functionalized polyacrylate latex with fluorine and silicon was prepared by semi-continuous dropping technique. 19F NMR, elemental analysis of the silicon (EAS) and FT-IR measurements prove that 2,2,2-trifluoroethyl methacrylate (TFEMA) and α,ω-bis(hydroxyl)polydimethylsiloxane (PDMSH) is successfully polymerized. TEM demonstrates that the functionalized latex particles were spherical, uniform and stable. Contact angle measurement and surface energy estimation show that the highest water contact of the functionalized latex films were 118.3° and the surface energy was as low as 11.7 mJ/m2. Water absorption ratio measurement reveals that the water resistance of the functionalized latex films is improved. The heat resistance of the functionalized latex films does not show a large difference from that of the original polyacrylate in our investigated systems.