Polyfluoro-1-alkene and method for producing the same

Details Polyfluoro-1-alkene and method for producing the same Polyfluoro-1-alkene and method for producing the same

C - Chemistry, Metallurgy

07

C

C07C 21/18 (2006.01) C07C 17/25 (2006.01)

Patent

CA 2724968

A polyfluoro-1-alkene represented by the general formula: CF3(CF2)n CH2(CF2)m CH=CH2 [I], wherein n is an integer of 0 to 5, and m is an integer of 1 to 7, is produced by reacting a polyfluoroalkyl iodide represented by the general formula: CF3(CF2)n CH2(CF2)m(CH2CH2)I [II], wherein n is an integer of 0 to 5, and m is an integer of 1 to 7, with an inorganic basic compound in the presence of a phase transfer catalyst. Alternatively, the polyfluoro-1-alkene is produced by reacting the polyfluoroalkyl iodide [II] with a nitrogen-containing organic basic compound, and is obtained product [I] as one fraction thereof. By the copolymerization of the polyfluoro-1-alkene with other fluorinated olefin monomers, a fluorine- containing copolymer having excellent light transmittance in the visible light range is formed.

L'invention concerne un polyfluoro-1-alcane représenté par la formule générale CF3(CF2)nCH2(CF2)mCH=CH2 [I] (dans laquelle n est un entier de 0 à 5 et m est un entier de 1 à 7), qui est fabriqué en provoquant la réaction d'un composé basique inorganique avec un iodure de polyfluoroalkyle représenté par la formule générale CF3(CF2)nCH2(CF2)m(CH2CH2)I [II] (dans laquelle n est un entier de 0 à 5 et m est un entier de 1 à 7), en présence d'un catalyseur de transfert de phase, ou qui est fabriqué par obtention du produit [I] sous la forme d'une fraction en provoquant la réaction d'un composé basique organique contenant de l'azote avec l'iodure de polyfluoroalkyle [II]. Ce polyfluoro-1-alcane peut former un copolymère contenant du fluor qui présente une transparence à la lumière supérieure dans le domaine de la lumière visible en provoquant sa copolymérisation avec un autre monomère oléfinique contenant du fluor.

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