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Synthesis and Characterization of Poly[oxy( ω , ω , ω ‐trifluoroalkylsulfonylmethyl)ethylene]s: Effect of Terminal CF 3 and CH 3 Moieties on the Wettability of the Comb‐Like Polymers
Author(s) -
Kim Byoung Gak,
Sohn EunHo,
Lee JongChan
Publication year - 2007
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.200600674
Subject(s) - wetting , polymer , polymer chemistry , polar , ethylene , chemistry , materials science , organic chemistry , composite material , astronomy , physics , catalysis
Two CF 3 ‐terminated polymers were synthesized by polymer analogous reactions in order to study the effect of the terminal CF 3 groups on their surface properties. ESCA and NEXAFS showed that they contain highly ordered side chains oriented perpendicularly to the polymer surface. The CF 3 ‐terminated polymers showed enhanced wettability by polar solvents as compared to the corresponding CH 3 ‐terminated polymers, while the wettability by non‐polar dodecane showed the opposite trend. This was attributed to specific interactions between the oriented surface dipoles of the CF 3 ‐terminated surfaces and the polar solvents. Thus, terminal CF 3 groups in a polymer can increase its surface polarity.