Synthesis and characterization of fluorinated polyionomers. Part I: polyperfluoro-sulfonylethoxy propylene vinyl ether sulfonimides containing aryl sulfonic acids

文献情報

出版日 2013-04-05

DOI 10.1039/C3PY00315A

インパクトファクター 5.582

著者

Anna M. Flach, Frederick E. Johnson, Israel Cabasso

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要旨

The synthesis and chemistry associated with the preparation of polysulfonimide polyionomers containing aryl sulfonic acids with high charge densities and various solubilities is reported. Homopolymers of perfluoro-sulfonylethoxy propylene vinyl ether (PSEPVE) are prepared by free radical polymerization and functionalized with sulfonyl chlorides of benzene, terphenyl, and triphenylene. The nature of the pendant group has been found to have a substantial impact on solution properties. In particular, water solubility is easily attained in the poly(PSEPVE) benzene sulfonimide, while the incorporation of bulky, rigid aromatic groups in the poly(PSEPVE) triphenylene sulfonimide disulfonic acid product allowed it to retain water insolubility with high charge density (∼2 meq. H+ per g). Perfluoropolysulfonimide gel network polymers are also prepared utilizing similar chemistry. Thermal stabilities upon boiling in an aqueous solution are established by monitoring charge density and changes in the 19F NMR spectra of the ionomers.

掲載誌

Polymer Chemistry

CiteScore: 8.6

自己引用率: 7.3%

年間論文数: 457

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Synthesis and characterization of fluorinated polyionomers. Part I: polyperfluoro-sulfonylethoxy propylene vinyl ether sulfonimides containing aryl sulfonic acids

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