Thermal Crosslinked and Nanodiamond Reinforced SPEEK Composite Membrane for PEMFCs
SPEEK has been widely considered as a promising alternative to Nafion® membrane for PEMFC. However, a conflict between high degree of…
Electropolymerization of Sulfonated Phenol by Cyclic Voltammetry
In this work, electropolymerization of sulfonated phenol were performed by cyclic voltammetry (CV) on planar or nano‐architecture substrates. The corresponding…
Crosslinked SPES-SPPSU Membranes for High Temperature PEMFCs
Highly sulfonated polyethersulfone (SPES; Ione exchange capacity = 3.2 meq/g) and polyphenylsulfone (SPPSU; ion exchange capacity = 3.2 meq/g) were synthesized. To get high thermal and…
Proton Mobility in Sulfonated Polyetheretherketone (Speek): Influence of Thermal Crosslinking and Annealing
Sulfonated PolyEtherEtherKetone (SPEEK) was thermally treated at 180 and 140 °C to study the effects of polymer cross‐linking and annealing on…
Cross-Linking of Sulfonated Poly(Ether Ether Ketone) by Thermal Treatment: How Does the Reaction Occur?
The cross‐link reaction between macromolecular chains of sulfonated poly(ether ether ketone) (SPEEK) by thermal treatment above 150 °C in presence of…
Stabilized sulfonated aromatic polymers by in situ solvothermal cross-linking
The cross-link reaction via sulfone bridges of sulfonated polyether ether ketone (SPEEK) by thermal treatment at 180°C in presence of…
Anodic Electropolymerization of Sulfonated Poly(phenyl ether): Study of Precursor Isomers and Polymer Growth
The electrochemical deposition of sulfonated poly(phenyl ether) (SPPE) from sulfonated phenol precursors was studied by cyclic voltammetry (CV) and chronoamperometry.…
LoLiPEM: Long life proton exchange membrane fuel cells
This paper presents the main results obtained during the European project (FCH-JU) "LoLiPEM - Long-life PEM-FCH & CHP systems". The…
Anion-Conducting Ionomers: Study of Type of Functionalizing Amine and Macromolecular Cross-Linking
Anion exchange membranes (AEM) were prepared by chloromethylation and amination of polysulfone (PSU) and polyphenylsulfone (PPSU). The reaction pathways were…
Effects of anion substitution on hydration, ionic conductivity and mechanical properties of anion-exchange membranes
Anion-conducting ionomers were synthesized by the chloromethylation of polysulfone (PSU) followed by the formation of quaternary ammonium groups by a…
Theoretical and Experimental Infrared Spectra of Hydrated and Dehydrated Sulfonated Poly(Ether Ether Ketone)
Time-dependent FT-IR spectra of sulfonated poly(ether ether ketone) during dehydration show diminishing 1081 cm−1 and 1023 cm−1 band intensities concurrent with the emergence and…
Low-Permeability Poly(ether ether ketone)-Based Ampholytic Membranes
Ion-exchange membranes based on sulfonated and sulfaminated poly(ether ether ketone) were prepared by a modified sulfamination route. In a first…