Characterization of a low-wettable surface based on perfluoroalkyl acrylate copolymers

The low-wettable surfaces based on perfluoroalkyl acrylate (FA)/ n-alkyl acrylate copolymers with various amounts of FA units were presented to analyze their surface properties. The FA copolymers were prepared by soap-free emulsion polymerization in the presence of sodium 2-acrylamide-2-methyl propa...

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Bibliographic Details
Published inJournal of fluorine chemistry Vol. 127; no. 8; pp. 1105 - 1110
Main Authors Yang, Tingting, Yao, Li, Peng, Hui, Cheng, Shiyuan, Park, In Jun
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.08.2006
Subjects
Low-wettable
Perfluoroalkyl acrylate (FA)
Surface properties
Topographical features
Surface properties
Topographical features
Low-wettable
Perfluoroalkyl acrylate (FA)
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Summary:The low-wettable surfaces based on perfluoroalkyl acrylate (FA)/ n-alkyl acrylate copolymers with various amounts of FA units were presented to analyze their surface properties. The FA copolymers were prepared by soap-free emulsion polymerization in the presence of sodium 2-acrylamide-2-methyl propanesulfonate (AMPSNa) used as a reactive surfactant. Low-wettability properties resulted from the self-assembly of fluorine-containing side chains, surface density and extent of orientation of perfluoroalkyl (R F) groups. The wetting behavior of the low-wettable surfaces was discussed from a standpoint of dynamic contact angles measurement, which implied an enrichment of perfluoroalkyl groups on the topmost surface. Increased R F surface densities and orientation, measured by attenuated total reflectance spectra of infrared (ATR-IR), X-ray photoelectron spectroscopy (XPS) and scanning force microscopy (SFM), respectively, were consistent with higher angles.
ISSN:0022-1139
1873-3328
DOI:10.1016/j.jfluchem.2006.05.019