Fluorinated telomers containing hydrophilic groups, process for preparation thereof, and the use thereof as surfactants in aqueous media
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United States of America Patent
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Jan 5, 1988
Grant Date -
N/A
app pub date -
Dec 24, 1985
filing date -
Dec 26, 1984
priority date (Note) -
Expired
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Abstract
Fluorinated telomers which can be defined by the formula: R.sub.F --C.sub.m H.sub.2m --(CH.sub.2 --CR.sub.1 R.sub.2).sub.n X (I) wherein R.sub.F is a poly- or perfluorinated radical; X is iodine, chlorine or bromine; m is 0, 1 or 2; n is from 5 to 1000; R.sub.1 is hydrogen or methyl; and R.sub.2 is a --COOH or --CONR.sub.3 R.sub.4 group, R.sub.3 and R.sub.4 being hydrogen or alkyl or hydroxyalkyl radicals, such telomers being obtained by free radical reaction of an ethylenic monomer CH.sub.2 .dbd.CR.sub.1 R.sub.2 with a fluorinated telogen R.sub.F --C.sub.m H.sub.2m --X, and being excellent surfactants in aqueous media with special usefulness as additives to fire-fighting protein-based emulsifiers.
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