Macroreticular Polystyrene Hybridized Resins with Both Perfluoroalkanesulfonic and Carboxylic Functional Groups

Abstract

Macroreticular polystyrene hybridized resins (FPSA) with both perfluoroalkanesulfonic and carboxylic functional groups have been synthesized at mild conditions by following suspension polymerization, perfluoroalkylation by ω-fluorosulfonylperfluorodiacyl peroxides (SFAP), alkali hydrolysis and acidification. The hybridized resins were characterized by FTIR, TGA, acidimetry and nitrogen sorption technique. The influences of the crosslink degree, the chain length and amount of SFAP on the resin’s properties were also investigated. FPSA exhibited higher exchange capacity and surface area than Nafion NR 50 and better thermostability than Amberlyst 15.