Casting solvent interactions with sulfonated poly(ether ether ketone) during proton exchange membrane fabrication

TL;DR: In this article, a series of sulfonated poly(ether ether ketone)s (SPEEKs) were prepared by sulfonation of commercial Victrex ® and Gatone ® PEEK for a comparative study of proton exchange membranes (PEM) intended for fuel cell applications.

TL;DR: A series of sulfonated poly(aryl ether ketone) copolymers were prepared by aromatic nucleophilic polycondensation of hexafluoroisopropylidene diphenol with 5,5'-carbonylbis(2-fluorobenze) as discussed by the authors.

TL;DR: In this article, the potentialities of PEEK-based polymers are discussed, pointing out the main benefits and drawbacks of these proton exchange membranes for fuel cell applications, and the use of sulfonated PEEK with cardo-group (PEEK-WC) is particularly stressed.

TL;DR: The proper separation between PSS and PEDOT will be of relevance in designing strategies to process high-performance plastic electrodes, and the existence of two phases in additive-treated and highly conductive PEDot PSS films is confirmed.

TL;DR: In this paper, the authors explain the transport properties and the swelling behaviour of NAFION and different sulfonated polyetherketones in terms of distinct differences on the microstructures and in the p K a of the acidic functional groups.

TL;DR: In this paper, the authors present an overview of the synthesis, chemical and electrochemical properties, and polymer electrolyte fuel cell applications of new proton-conducting polymers based on hydrocarbon polymers.

TL;DR: In this paper, a series of composite membranes based on sulfonated polyether ether ketone with embedded heteropolycompounds were studied and their electrochemical and thermal properties were studied, showing that an increase in degree of sulfonation and introduction of these fillers resulted in increased Tg and enhanced membrane hydrophilicity, bringing about a substantial gain in proton conductivity.

TL;DR: In this paper, sulfonated polymers containing 65 mol% sulfonic acid showed a high protonconductivity of 10−2−10−4 S cm−1 at room temperature, which is in agreement with the strong water absorption of the former compound.