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Synthesis of polysiloxane‐grafted fluoropolymers and their hydrophobic properties
Author(s) -
Suzuki H.,
Takeishi M.,
Narisawa I.
Publication year - 2000
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/1097-4628(20001209)78:11<1955::aid-app150>3.0.co;2-h
Subject(s) - polydimethylsiloxane , siloxane , fluoropolymer , grafting , polymer chemistry , polymer , materials science , epoxide , coating , copolymer , polymer science , chemical engineering , lewis acids and bases , side chain , chemistry , catalysis , organic chemistry , composite material , engineering
Abstract A polydimethylsiloxane with an epoxide end group was grafted onto a fluoropolymer that had hydroxyl side chains by using protonic or Lewis acids as catalysts. Strong acids such as trifluoromethanesulfonic acid were found to be effective for the grafting of the polydimethylsiloxane of relatively large molecular weight ( M n 4440). A coating prepared from the graft polymer was so hydrophobic that a water droplet of 10 μL slid down on its inclined plane surface (30° with respect to the horizontal). ESCA analysis revealed that the siloxane branches are preferentially present on the surface. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 78: 1955–1963, 2000