Fluorosulfonyl group or sulfonic acid group-containing polymer, its production method and its application
AssigneeAGC Inc.
InventorsTakeshi Hirai, Daisuke Jomuta, Chikaya Tamitsuji
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Abstract
A fluorosulfonyl group-containing polymer having units represented by the following formula u1, a sulfonic acid group-containing polymer having fluorosulfonyl groups in the fluorosulfonyl group-containing polymer converted into sulfonic acid groups, its production method and its applications: wherein RF1 and RF2 are a C1-3 perfluoroalkylene group.
Claims29
A fluorosulfonyl group-containing polymer, comprising units represented by formula u1:
- wherein RF1 and RF2 are a C1-3 perfluoroalkylene group.
A sulfonic acid group-containing polymer, comprising units represented by formula u2:
- wherein RF1 and RF2 are a C1-3 perfluoroalkylene group, and Z+ is H+, a metal ion or an ammonium ion.
An acid form sulfonic acid group-containing fluorocarbon polymer, which has a hydrogen gas permeability coefficient of at most 2.9×10−9 cm3·cm/(s·cm2·cmHg) under conditions of a temperature of 80° C. and a relative humidity of 10%.
Dependencies are inferred from the claim text.