LOW EQUIVALENT WEIGHT SULFONIC FLUOROPOLYMERS

The invention is a sulfonic fluoropolymer having a fluoropolymer backbone having pendant groups attached thereto and represented by the general formula: ZSO2-(CF2)a-(CFRf)b-O- where: Z is selected from a halogen, an alkali metal, hydrogen, or OR; R is a branched or linear alkyl radical having from 1...

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Bibliographic Details
Main Authors BOBBY R. EZZELL, WILLIAM P. CARL
Format Patent
LanguageEnglish
Published 31.01.1990
Edition5
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL PROCESSES OF COMPOUNDING
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
WORKING-UP
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Summary:The invention is a sulfonic fluoropolymer having a fluoropolymer backbone having pendant groups attached thereto and represented by the general formula: ZSO2-(CF2)a-(CFRf)b-O- where: Z is selected from a halogen, an alkali metal, hydrogen, or OR; R is a branched or linear alkyl radical having from 1 to 10 carbon atoms or an aryl radical; a is 0-2; b is 0-2; provided a + b is not equal to 0; Rf is selected from -F, -Cl, perfluoroalkyl radials having from 1 to 10 carbon atoms and fluorochloroalkyl radicals having from 1 to 10 carbon atoms, wherein the sulfonic fluoropolymer has an equivalent weight of less than 800, and a hydration product of less than 29,000.
Bibliography:Application Number: ZA19880003226