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Surface active fluorosilicone polymers
Author(s) -
Owen Michael J.,
Kobayashi Hideki
Publication year - 1994
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19940820114
Subject(s) - fluoropolymer , silsesquioxane , siloxane , polymer , fluorocarbon , contact angle , surface tension , materials science , polymer chemistry , fluorine , monolayer , intermolecular force , adhesion , functional polymers , chemical engineering , copolymer , polymer science , chemistry , composite material , organic chemistry , molecule , nanotechnology , thermodynamics , physics , engineering , metallurgy
The introduction of low‐intermolecular‐force, aliphatic fluorocarbon groups into siloxane polymers has produced a variety of useful, low surface tension materials including R f (CH 2 ) 2 SiO 3/2 self‐assembled polymer monolayers and silsesquioxane polymers, and [R f (CH 2 ) 2 MeSiO] n siloxanes. The surface tensions of such materials measured by the contact angle approaches of Owens‐Wendt and Girifalco‐Good‐Fowkes‐Young are reviewed and compared with the direct determination from work of adhesion studies based on the Johnson, Kendall and Roberts theory. The lowest surface tension fluorosilicones available are as oleophobic and hydrophobic as any known fluoropolymer. The most efficient, effective incorporation of fluorine in these fluorosilicones is generally achieved with the CF 3 (CF 2 ) 3 (CH 2 ) 2 group, making these nonafluorohexyl‐containing species the most commercially attractive.