Patent Application
App. No. 14/014,892
FLUOROSULFONYL GROUP-CONTAINING MONOMER AND ITS POLYMER, AND SULFONIC ACID GROUP-CONTAINING POLYMER
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Abstract
A fluorosulfonyl group-containing monomer having a high polymerization reactivity and plural fluorosulfonyl groups, a fluorosulfonyl group-containing polymer and a sulfonic acid group-containing polymer, obtained by using the monomer.
Claims (3)
1 . A compound represented by the following formula (3):
wherein each of R f1 and R f2 which are independent of each other, is a C 1-8 perfluoroalkylene group which may have an etheric oxygen atom between carbon atoms.
2 . The compound according to claim 1 , wherein each of —R f1 —SO 2 F and —R f2 —SO 2 F is a perfluorinated 2-fluorosulfonyl ethoxy group-substituted alkylene group (the alkylene group has 1 to 3 carbon atoms).