| abstract |
The invention relates to fluorinated telomeres of formula: in which R F denotes a poly- or perfluorinated radical, X is an iodine, chlorine or bromine atom, m is equal to 0, 1 or 2, n is a number ranging from 5 to 1000, R 1 is a hydrogen atom or a methyl radical, and R 2 is a COOH or CONR 3 R 4 , R 3 and R 4 group representing hydrogen atoms or alkyl or hydroxyalkyl radicals.n n n These telomeres, obtained by reacting an ethylenic monomer CH 2 = CR, R 2 with a fluorinated telogen RF -CmH 2m -X, by radical route, are excellent surfactants in aqueous medium and are particularly advantageous as additives to anti-protein emulsifiers. -fire. |