Stigler, TheresaTheresaStiglerAuffarth, SebastianSebastianAuffarthWagner, Maximilian MichaelMaximilian MichaelWagnerHutzler, AndreasAndreasHutzlerThiele, SimonSimonThieleKerres, JochenJochenKerres2025-05-192025-05-192025-03-05https://publica.fraunhofer.de/handle/publica/48762910.1039/d4cc06418f2-s2.0-86000553606Herein, we present a hybrid polymer material with phosphonic acid and sulfonic acid moieties on a poly(pentafluorostyrene) backbone utilizing the SNAr Michaelis-Arbuzov and the para-fluoro-thiol reaction. Blending the hybrid material with a benzimidazole polymer yielded a mechanically stable membrane featuring proton conductivities up to three times higher than conventional Nafion N211 at temperatures above 120 °C.entrueAcid moietyBenzimidazolesHigh temperature fuel cellsHybrid polymersHybrids materialMechanically stablePhosphonic acidsPoly(pentafluorostyrene)Polymer materialsSulphonic acidsNafion membranes600 Technik, Medizin, angewandte Wissenschaften::620 Ingenieurwissenschaftenjournal article