Synthesis, properties, and applications of composite materials based on grafted copolymers of perfluoropolymers and perfluorinated monomers with functional groups
- Institute of Chemical Physics, Moscow (Russian Federation)
Statistic copolymers of tetrafluoroethylene and perfluorinated alkyl vinyl ethers (PFAVEFG) with functional groups are of wide application as membranes for chloro-alkali cells, fuel cells, etc., due to their unique properties of high thermal and chemical stability. These polymers are also used as catalysts for a wide range of organic reactions. Synthesis of the graft copolymers of PFAVEFG onto fluoropolymers would maintain the advantages of these catalysts while producing insoluble materials and decreasing expensive fluoro-monomer content without reducing the catalytic activity of the copolymers. The structure and catalytic properties of radiation induced graft copolymerization of perfluorinated alkyl vinyl ethers with sulfonyl fluoride (PFAVESF) were studied. Specific catalytic activity of the grafted copolymer was up to 40 times more than the same value for the statistic copolymer. Esterification of acrylic acid, alkylation of substituted phenol were also performed using the grafted copolymers.
- OSTI ID:
- 141575
- Report Number(s):
- CONF-930304--
- Country of Publication:
- United States
- Language:
- English
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