*Correspondence: Maria Luisa Di Vona, Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, Via della Ricerca Scientifica 1, 00133 Roma, Italia e-mail: [email protected] The cross-link reaction via sulfone bridges of sulfonated polyether ether ketone (SPEEK) by thermal treatment at 180°C in presence of dimethylsulfoxide is discussed. The modifications of properties sub...

The ease and low environmental impact of its preparation, the reduced fuel crossover, cost, make sulfonated polyether ether ketone (sPEEK) a potential candidate to replace Nafion ionomer in proton exchange membrane cells (PEMFCs). In this study, sPEEK was used as polymer matrix for preparation nanocomposite electrolyte membranes by dispersing an organo-silica layered material properly functiona...

Abstract Polyether ether ketone (PEEK) is a widely used material for friction pairs due to its excellent mechanical strength, good wear resistance, and chemical inertness. However, some modifications are necessary when PEEK as water-lubricated pair. In this study, novel sulfonation method was developed design pair with ultralow friction, high loading capacity. powders were sulfonated using ClSO...

Cranial implants are used to secure intracranial structures, reconstruct the skull contour, normalise cerebral haemodynamic and repair cranial defects. Larger bone defects require intervention for from an implant made autologous or other material. To such using implants, materials necessitate biocompatibility with natural bone. Patient-specific designed specific following standard procedures de...

Microbial fuel cells (MFC) are an emerging technology for wastewater treatment that utilizes the metabolism of microorganisms to generate electricity from organic matter present in water directly. The principle MFC is same as hydrogen cell and has three main components (i.e., anode, cathode, proton exchange membrane). membrane separates anode cathode chambers keeps anaerobic aerobic conditions ...

A highly ion-selective membrane for vanadium redox flow batteries (VRBs) consisting of sulfonated poly(arylene ether ketone) (SPAEK) and polyoxometalate coupled with a graphene oxide was designed and fabricated. The SPAEK/PW-mGO composite membrane showed an effectively low self-discharge rate and excellent Coulombic efficiency (98.73%) in VRBs.

Sulfonated poly (ether ether ketone) (SPEEK) with a low degree of sulfonation (DS = 40%) was prepared for proton exchange membrane fuel cells (PEMFC). Poly (ether ether ketone) (PEEK) was sulfonated in concentrated H2SO4 under N2 atmosphere and characterized by the hydrogen nuclear magnetic resonance (H-NMR) technique. After preparation of the SPEEK polymer, the obtained polymer was dissolved i...