2008 – Lime

Effects of Hydrothermal/Thermal Treatments on the Water-uptake of Nafion Membranes and Relations with Changes of Conformation, Counter-elastic force and Tensile Modulus of the Matrix

A kinetic investigation of the water-uptake of Nafion 117 membranes after different hydrothermal and thermal treatments was performed. Long equilibration…

Organic-Inorganic Hybrid Membranes Based on Sulfonated Polyaryl-Ether-Ketones: Correlation between Water Uptake and Electrical Conductivity

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 PEEK and PPSU for PEM Fuel Cells

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…

Proton-Conducting Hybrid Polymers: Water Sorption Isotherms and Mechanical Properties of Blends of Sulfonated PEEK and Substituted PPSU Composite

Mechanical properties (elastic modulus, ultimate strength, and elongation at rupture), water sorption isotherms, and chemical diffusion coefficients of water are…

Mechanical Properties of Hybrid Proton Conducting Polymer Blends Based on Sulfonated Polyetheretherketones

The mechanical properties of polymer blends made from sulfonated polyetheretherketone and sulfonated and/or silylated polyphenylsulfone (PPSU) are reported. Elastical modulus…