Molecular Crystals and Liquid Crystals, Vol.447, 441-450, 2006
Bulk and surface characterization of fluorinated vinyl cyclopropane/vinyl acetate copolymers
We prepared new copolymers of a 2-vinyl cyclopropane monomer carrying-(CF2)(8)F fluorocarbon side chains (VCPF8) and vinyl acetate (VAc). The copolymers formed a partly interdigitated S-Ad mesophase. Static contact angles theta were measured using various wetting liquids, which proved that thin films of the copolymers were both hydrophobic (theta > 110 degrees with water) and lipophobic (theta > 65 degrees with n-hexadecane). The surface tensions gamma(sv) of the polymer films were evaluated by two different approaches and resulted to have quite low values (gamma(sv) < 15 mJ/m(2)), even at relatively low contents of fluorocarbon side chains.