Synthesis of fluorosilicone monomer and application in hydrophobic surface of acrylic copolymer

A kind of fluorosilicone monomer with polymerizable vinyl group and fluorine and silicon components has been designed and synthesized. A series of acrylic copolymers were prepared using the monomer and normal acrylic monomers. The effects of the monomer on the surface properties and thermostability of the copolymers were studied. The chemical structure of the monomer and the copolymers were confirmed by FTIR, ¹H NMR, and ¹⁹F NMR. MALDI-TOF-MS was used to monitor the molecular weight variation during the monomer synthesis process. Thermal properties of the copolymers were analyzed by DSC and TGA. Surface properties of the copolymer films were characterized by static water contact angles, AFM, and XPS. Results showed that the fluorosilicone monomer with the expected structure was synthesized and had been copolymerized into the copolymers. The monomer contributed to a uniform hydrophobic film with no influence on the surface roughness. The thermostability of the copolymers was improved by the monomer.