| 摘要 |
PROBLEM TO BE SOLVED: To produce a perfluorovinyl ether monomer being a raw material for a heat-resistant and oxidation-resistant perfluorosulfonic acid polymer by a reduced number of processes in a high yield. SOLUTION: The method for producing a perfluorovinyl ether monomer comprises a process (a) for isomerizing a compound represented by general formula (1) to give a compound represented by general formula (3) FCO(CF<SB>2</SB>)<SB>n-1</SB>SO<SB>2</SB>F (3) (n is an integer of 3-8), a process (b) for adding a hexafluoropropylene oxide (HFPO) to the compound represented by general formula (3) to give a compound represented by general formula (4) CF<SB>3</SB>CF(COF)O(CF<SB>2</SB>)<SB>n</SB>SO<SB>2</SB>F and a process (c) for decarboxylating the compound represented by general formula (4) to give a perfluorovinyl ether monomer represented by general formula (2) CF<SB>2</SB>=CFO(CF<SB>2</SB>)<SB>n</SB>SO<SB>2</SB>F. COPYRIGHT: (C)2006,JPO&NCIPI
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