Journal of Polymer Science Part A: Polymer Chemistry, Vol.39, No.24, 4227-4235, 2001
Effect of the structural parameters of a series of fluoromonoacrylates on the surface properties of cured films
A series of fluorinated acrylates [F(CF2)(q)-(CH2)(P)-OCOCH=CH2, where q = 8 and p = 2 divided by 11) were synthesized and used as comonomers in the photopolymerization of acrylic systems. These fluoroacrylates were synthesized in a three-step procedure through the radical addition of perfluoroalkyliodides to an unsaturated alcohol followed by their acrylation. The mixtures, containing up to 0.8% (w/w) of the comonomers, produced transparent films after UV curing; they showed changes in the surface properties as a function of the comonomer type and concentration. With contact-angle and X-ray photoelectron spectroscopy analyses, the relationship between the structure of the monomers and the surface properties of the UV-cured films was investigated: the wettability decreased, depending on the length of the fluorinated group (q value) and the hydrogenated segment of the monomer (p value).
Keywords:fluoroacrylates;UV curing;surface modification;fluorinated films;surface characterization;coatings;fluoropolymers