Abstract: Novel vinyl ethers are prepared in decarboxylation reactions of novel acid fluoride compounds according to the following reaction: ##STR1## wherein a is 0 or an integer greater than 0;b is 0 or an integer greater than 0;n=1 or an integer greater than 1;R.sub.f and R.sub.f.sup.' are independently selected from the group consisting of F, Cl, perfluoroalkyl or fluorochloroalkyl;X=F, Cl, Br or mixtures thereof when n>1X'=Cl or Br;Y is an acid group or an acid derivative easily convertible to an acid group;Z=F, Cl, Br, OH, NRR' or OA;R and R' are independently selected from the group consisting of hydrogen, an alkyl having one or more than one carbon atoms, and aryl; andA=alkali metal, quaternary nitrogen, or R.These vinyl ethers may be homopolymerized with themselves or copolymerized with other vinyl ethers.

Abstract: Novel vinyl ethers are prepared in decarboxylation reactions of novel acid fluoride compounds according to the following reaction: ##STR1## wherein a is 0 or an integer greater than 0;b is 0 or an integer greater than 0;n=1 or an integer greater than 1;R.sub.f and R.sub.f ' are independently selected from the group consisting of F, Cl, perfluoroalkyl or fluorochloroalkyl;X=F, Cl, Br or mixtures thereof when n>1X'=Cl or Br;D is an acid group or an acid derivative easily convertible to an acid group;Z=F, Cl, Br, OH, NRR' or OA;R and R' are independently selected from the group consisting of hydrogen, an alkyl having one or more than one carbon atoms, and aryl; andA=alkali metal, quaternary nitrogen, or R.These vinyl ethers may be homopolymerized with themselves or copolymerized with other vinyl ethers.

Abstract: Compounds represented by the general formulas ##STR1## are prepared by reacting halofluoropropylene oxides with fluorinated acid fluorides and ketones.These compounds may be decarboxylated to form useful monomers, ##STR2## wherein a=to 3;b=to 3;c=0 or 1;provided a+b+c.noteq.0;n=zero or an integer greater than zero;R.sub.f =F, perfluoroalkyl or fluorochloroalkyl;X=F, Cl, Br or mixtures thereof when n>1;X'=Cl or Br;Y=Cl, Br, F or I;Z=F, OH, NRR' or OA;R and R' are independently selected from the group consisting of hydrogen, an alkyl having one or more than one carbon atom and an aryl;A=alkali metal, quaternary ammonium, R or an aryl.These monomers may then be polymerized into polymers having useful properties.

Abstract: Novel vinyl ethers are prepared in decarboxylation reactions of novel acid fluoride compounds according to the following reaction: ##STR1## wherein a is 0 or an integer greater than 0;b is 0 or an integer greater than 0;n=1 or an integer greater than 1;R.sub.f and R.sub.f ' are independently selected from the group consisting of F, Cl, perfluoroalkyl or fluorochloroalkyl;X=F, Cl, Br or mixtures thereof when n>1X'=Cl or Br;Y is an acid group or an acid derivative easily convertible to an acid group;Z=F, Cl, Br, OH, NRR' or OA;R and R' are independently selected from the group consisting of hydrogen, an alkyl having one or more than one carbon atoms, and aryl; andA=alkali metal, quaternary nitrogen, or R.These vinyl ethers may be homopolymerized with themselves or copolymerized with other vinyl ethers.

Abstract: Fluorovinyl compounds having the formulaTLCF.dbd.CF.sub.2are prepared by reacting compounds having the formula ##STR1## for a time and at a temperature sufficient to form the vinyl compound: whereX=Cl, Br or I;Z=F, Cl, Br, OH, NRR', OA, or SA;R and R' are independently selected from the group consisting of hydrogen, an alkyl having one or more than one carbon atom, and aryl;A=Alkali metal, alkali earth metal, quaternary nitrogen, or R;L=oxygen or sulfur; andT=an alkyl or aryl radical which does not interfere with the reaction.

Abstract: Compounds represented by the general formulas ##STR1## are prepared by reacting halofluoropropylene oxides with fluorinated acid fluorides and ketones.

Abstract: An improved polymer for use as an ion exchange membrane in an electrolytic cell wherein the polymer has pendant chains containing sulfonic acid ion exchange groups and has an equivalent weight of between about 800 and about 1500. The polymers have a hydration product of less than about 22,000.The electrolytic cell and its method of operation are described when these polymers are used as ion exchange membranes.

Abstract: An electrolytic cell and a process for electrolysis using the cell are provided. The electrolytic cell is separated into an anode chamber and a cathode chamber by a fluorinated polymer membrane; wherein the membrane comprises:(a) at least 60 mole percent [CFX--CF.sub.2 ] where X=F or Cl;(b) an ion exchange equivalent weight of at least 600;(c) pendant sulfonyl ion exchange groups; and(d) pendant substantially fluorinated carbon groups which have no ion exchange functionality.These cells are particularly useful for the electrolysis of aqueous, alkali metal halides.

Abstract: An improved polymer for use as an ion exchange membrane in an electrolytic cell wherein the polymer has pendant chains containing sulfonic acid ion exchange groups and has an equivalent weight of between about 800 and about 1500. The polymers have a hydration product of less than about 22,000.The electrolytic cell and its method of operation are described when these polymers are used as ion exchange membranes.

Abstract: An improved polymer for use as an ion exchange membrane in an electrolytic cell wherein the polymer has pendant chains containing sulfonic acid ion exchange groups and has an equivalent weight of between about 800 and about 1500. The polymers have a hydration product of less than about 22,000.The electrolytic cell and its method of operation are described when these polymers are used as ion exchange membranes.

Abstract: The invention relates to a process to produce compounds represented by the general formulaY--(CFR.sub.f).sub.a --(CFR.sub.f ').sub.b --O--CF.dbd.CF.sub.2by decarboxylation of compounds represented by the general formula ##STR1## where a=0-3; b=0-3;provided a+b=2 or 3;Y.dbd.an acid derivative;X.dbd.Cl, I, or Br;M.dbd.OR, F, Cl, Br, I, OA;A.dbd.alkali metal, alkali earth metal, a quaternary nitrogen and hydrogen;R.sub.f ' and R.sub.f are independently selected from the group consisting of F, Cl, perfluoroalkyls and fluorochloroalkylsR.dbd.an alkyl having one or more carbon atoms or an aryl.

Abstract: Novel perhalofluoro ethers and methods for preparing the same having generic formula, ##STR1## wherein a=0 or an integer greater than O;b=0 or an integer greater than O;n=zero or an integer greater than zero;R.sub.f and R'.sub.f are each independently selected from the group consisting of F, perfluoroalkyl and fluorochloroalkyl;X=F, Cl or Br;X'=Cl or Br;Y is an acid group or a group easily convertible to an acid group;Z=F, Cl, Br, OH, NRR' or OA;R and R' are independently selected from the group consisting of hydrogen, an alkyl having one or more than one carbon atom and aryl;A=alkali metal, quaternary nitrogen, or R.

Abstract: Polymers and the process for producing polymers by the polymerization of at least three monomers wherein at least one monomer is selected from the group consisting of tetrafluoroethylene, trifluoromonochloroethylene, trifluoroethylene, vinylidene fluoride, 1,1-difluoro-2,2-dichloroethylene, 1,1-difluoro-2-chloroethylene, hexafluoropropylene, 1,1,1,3,3-pentafluoropropylene, octafluoroisobutylene ethylene, vinylchloride, trifluoronitrosomethane, perfluoronitrosoethane and alkyl vinyl ether,and at least one other monomer is selected from the group represented by the general formula: ##STR1## and at least one monomer is selected from the group of monomers represented by the general formula: ##STR2## These polymers are useful as ion exchange membranes in electrolytic cells, especially chlor-alkali electrolytic cells. Other uses include solid, strong acid catalyst useful in corrosive environments, electrodialysis and other similar membrane separation processes.