Synthesis of fluoro-substituted monomers bearing a functionalised lateral chain
摘要:
The oxidation of omega-(omega-perfluoroalkylatkyl-sulfanyl)-alkyl acrylates to corresponding sulfoxides and sulfones is described in this paper. (C) 2003 Elsevier B.V. All rights reserved.
Perfluoroalkyl alkylene vinyl sulfoxides and sulfones
申请人:Ciba-Geigy Corporation
公开号:US04517384A1
公开(公告)日:1985-05-14
Perfluoroalkyl alkylene vinyl sulfoxides and sulfones of the formula ##STR1## wherein R.sub.f is perfluoroalkyl of 3 to 18 carbon atoms, R.sub.1 is hydrogen or lower alkyl, m is 1 to 3 and n is 1 or 2, intermediates thereof, methods for their preparation, and the uses of such compounds to render cellulosic, and natural and synthetic polyamide, materials hydrophobic and oleophobic are described.
Compounds of the formula
wherein Rf is perfluoroalkyl of 3 to 18 carbon atoms, R, is hydrogen or lower alkyl, m is 1 to 3 and n is 1 or 2, are prepared by eliminating HX (X being a leaving group) from
which is prepared by treating
with a peroxide.
The compounds with formula (1) may be polymerised and the polymers used to render polyamides and cellulose oleophobic and hydrophobic.