中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
N-烯丙基十七氟辛烷磺酰胺 | heptadecafluoro-octane-1-sulfonic acid allylamide | 423-86-9 | C11H6F17NO2S | 539.213 |
全氟辛烷磺酰氯 | perfluorooctanesulphonyl chloride | 423-60-9 | C8ClF17O2S | 518.579 |
The invention includes a polymer of a vinyl or allyl fluorocarbon ester of the formula: Rf.SO2.N(R1)R.COOCH=CH2 or Rf.SO2.N(R1)R.COOCH2CH=CH2 where Rf is a perfluoroalkyl group of 4 to 12 carbon atoms, R1 is hydrogen or an alkyl group of 1 to 6 carbon atoms and R is an alkylene bridging group of 1 to 12 carbon atoms. The vinyl and allyl esters may be bulk, solution, e.g. toluene, or emulsion polymerized using peroxide catalysts, e.g. acetyl or benzoyl peroxides, either alone or together or with other ethylenic monomers such as maleic anhydride, acrylonitrile, vinyl chloride, vinyl acetate, vinyl silicones, styrene, methyl acrylate, methyl methacrylate, ethylene, isoprene and butadiene. The polymer may be modified by the use of plasticizers, carbon black, zinc oxide or by copolymerization with polyfunctional compounds which cause cross-linking. Examples describe the polymerization of N-ethyl- and N-methyl- N-perfluoro-octanesulphonyl glycine vinyl ester and the copolymeriation of N-methyl-N-perfluoro-octanesulphonyl-11-amino-undecanoic acid allyl ester and maleic anhydride. Specifications 758,467 and 857,335 are referred to.ALSO:The invention comprises vinyl and allyl esters of a perfluoroalkanesulphonamido alkylene-monocarboxylic acid having the formula: Rf SO2 N(R1)R-COOCH=CH2 or RfSO2N(R1)R-COOCH2-CH=CH2 where Rf is a perfluoroalkyl group containing 4 to 12 carbon atoms, R is an alkylene bridging group containing 1 to 12 carbon atoms and R1 is hydrogen or an alkyl group containing 1 to 6 carbon atoms. They may be prepared by esterifying the corresponding acid or prepared directly by condensing an alkali metal salt of a perfluoroalkylsulphonamide with a vinyl or alkyl ester of an omega halogenated carboxylic acid. These esters may be polymerised or copolymerised with other ethylenic compounds (see Group IV(a)) to yield a polymer that, when coated on the surface of an article, gives both a water and oil repellent surface. The monomeric esters may be used in a similar manner. In Examples (1) the sodium salt of N-ethyl-perfluoro-octanesulphonamide is condensed with vinyl chloroacetate. (2) the N-methylcompound is similarly used. (3) N-methyl-N-perfluoro-octanesulphonyl-11-amino-undecanoic acid is esterified with vinyl acetate in the presence of sulphuric acid and mercuric acetate. (4) N-perfluoro-octanesulphonyl glycine is esterified with allyl alcohol in the presence of betanaphthalene sulphonic acid. (5) N-methyl-N-perfluoro-octanesulphonyl - 11 - amino - undecanoic acid is similarly esterified. Specifications 758,467 and 857,335 are referred to.