We report the electrochemical synthesis of proton- and hydroxide-conducting ionomers. Sulfonated poly(phenyl ether) with various degree of functionalization was synthesized…
We studied composite anion exchange membranes made from poly(2,6‐dimethyl‐1,4‐phenylene oxide) (PPO) with grafted 1,4‐diazabicyclo[2.2.2]octane (DABCO) and Mg/Al lamellar double hydroxide…
The stability of anion exchange membranes is paramount for the use in alkaline fuel cells. Long-chain ionomers are supposed to…
A kinetic investigation of the water-uptake of Nafion 117 membranes after different hydrothermal and thermal treatments was performed. Long equilibration…
We compare hybrid organic–inorganic polymers, based on sulfonated polyaryl–ether–ketones (S-PEEK) and different sulfonated and silylated molecules and macromolecules. The synthesis…
Synthetic strategies for the preparation of proton-conducting hybrid polymers based on Poly-Ether-Ether-Ketone (PEEK) and Poly-Phenyl-Sulfone (PPSU) are presented. Sulfonation reactions…
Mechanical properties (elastic modulus, ultimate strength, and elongation at rupture), water sorption isotherms, and chemical diffusion coefficients of water are…
The mechanical properties of polymer blends made from sulfonated polyetheretherketone and sulfonated and/or silylated polyphenylsulfone (PPSU) are reported. Elastical modulus…
An important problem for medium temperature polymer electrolyte fuel cells (MT PEMFCs) operating in the temperature range 90–140 °C is the…
Composite membranes made‐up of sulphonated polyetheretherketone (SPEEK, DS = 0.5) and of a sulphonated and silylated hybrid organic–inorganic derivative of polyphenylsulphone (SiSPPSU,…
Sulfonated poly(ether ether ketone) (SPEEK) membranes were thermally treated at temperatures between 120 and 160 °C. Water uptake measured at…
Mechanical, thermal and electrical properties of polymer blends of SPEEK with 7% SiPPSU are reported. Presence of silicon stabilizes the…