Acrylic copolymers with perfluoroalkylated biphenyl side groups: Correlation structure-surface properties
Date
2006
Authors
Hartmann P.
Collet A.
Viguier M.
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Volume Title
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Abstract
We investigate the surface properties of a series of random copolymers of perfluoroalkylated biphenyl acrylates (CH2=CHCOO(CH2) mOC6H4C6H4O(CH 2)3C8F17, m = 0, 6, 11) and methyl methacrylate (MMA) or octadecyl methacrylate (SMA). The surface properties of the polymers were correlated to the structural parameters. Wetting hysteresis and surface tensions were estimated from dynamic contact angle measurements. It was established from atomic force microscopy analysis that wetting hysteresis cannot arise from surface anomalies. The stability of the polymer surface is enhanced by the presence of biphenyl groups and octadecyl side chains in SMA copolymer series. Surface tensions of polymers were calculated using different methods involving the Lifshitz-van der Waals/acid-base approach (van Oss et al.) and the equation of state (Neumann et al.). The low surface tensions (ca. 11 mN/m) depend on three main structural parameters: copolymer composition, type of comonomer, and length of hydrocarbon spacer (CH2)m. © 2006 American Chemical Society.
Description
Keywords
Acrylics, Atomic force microscopy, Surface properties, Surface tension, Van der Waals forces, Methyl methacrylate (MMA), Perfluoroalkylated biphenyl acrylates, Structural parameters, Wetting hysteresis, Copolymers
Citation
Macromolecules
39
20
39
20