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Synthesis of Functional Perfluorinated Resins, Branched Perfluorinated Ethers andPerfluoroalkanoyl Fluorides

机译:功能性全氟树脂,支化全氟化醚和全氟烷酰氟的合成

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Functional group containing perfluorinated resins have been prepared by carefullycontrolling direct fluorination of poly-(3-methyloxetane-3-methanol). Branched perfluorinated ethers such as bis(perfluoroneopentyl) ether and perfluoro-(2,2-dimethylbutyl methyl ether) have also been synthesized by direct fluorination of alkanols. The by products, perfluoroalkanoyl fluorides, are useful intermediates. Sulphonic or carboxylic acid containing perfluorinated polymers such as NAFION or FLEMION, are useful in very aggressive environments: e.g., chlor alkali cells, fuel cells, batteries, etc. In addition, the presence of 'superacid' ionic functional groups and the unusual ion clustered morphology of NAFION has extended its use as a catalyst for organic reactions, and as a chromatographic stationary phase.

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