Results 161 to 170 of about 6,156 (199)

Multifunctional surface of the nano-morphic PEEK implant with enhanced angiogenic, osteogenic and antibacterial properties. [PDF]

Regen Biomater
Zhang J, Ma T, Liu X, Zhang X, Meng W, Wu J.   +5 more
europepmc   +1 more source

Bioactivity, hemocompatibility, and inflammatory response of calcium incorporated sulfonated polyether ether ketone on mouse-derived bone marrow cells. [PDF]

Biosci Rep
Saravanabhavan SS, Narayanaswamy Venkatesan P, Jonna N, Vasantha Palaniappan K, Sarang Z, Natesan B, Sergi CM.   +6 more
europepmc   +1 more source

Ionomeric Nanofibers: A Versatile Platform for Advanced Functional Materials. [PDF]

Polymers (Basel)
Poddar M, Chang YH, Chiu FC.
europepmc   +1 more source

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Proton Conductivity of SPEEK Membranes

Polymer-Plastics Technology and Engineering, 2010
Novel sulfonated poly(ether ether ketone) (PEEK) copolymers were prepared using a low-viscosity grade PEEK powder. The TGA studies indicated that SPEEK membranes with up to 75% DS have enough thermal stability. The highest conductivity of 2.176 × 10−2 S cm−1 has been observed at 100°C for SP96 (DS = 72%).
G. M. Shashidhara, K. Naveen Kumar
openaire   +1 more source

Microstructure–Performance Relationships of sPEEK-Based Catalyst Layers

Journal of The Electrochemical Society, 2010
Porous catalyst layers containing sulfonated polyetheretherketone (sPEEK, 1.4 meq g ―1 ) were deposited onto membranes to form catalyst-coated membranes. The catalyst layer properties, as a function of sPEEK content, were studied ex situ and in fuel cells.
Peron, Jennifer, Edwards, Dave, Besson, Arthur, Shi, Zhiqing, Holdcroft, Steven   +4 more
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Mixed conductive blends of SPEEK/PANI

Solid State Ionics, 2005
Abstract Membranes were obtained by solvent evaporation from 70% sulfonated poly(ether ether ketone) and polyaniline in N-methyl-2-pyrrolidone [NMP] or N,N-dimethyl formamide [DMF]. SPEEK/PANI membranes were studied by UV–Vis spectroscopy, ion-exchange capacity, ionic and electronic conductivity and thermal properties, in order to observe the SPEEK ...
Jerusa Roeder, Hugo Silva, Suzana P. Nunes, Alfredo T.N. Pires   +3 more
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Hybrid SPEEK/Phosphonatedsilsesquioxanes membranes for PEMFC

Nanomaterials and Energy, 2012
In this work, the production and characterization of hybrid membranes of sulfonated poly(ether-ether-ketone; SPEEK) and phosphonated copolysilsesquioxanes (PCs) and its application in proton exchange membrane fuel cell (PEMFC) were studied. To improve the proton conduction and thermal stability of the polymer SPEEK, PCs were synthesized from ...
Kelen Rossi de Aguiar, Guilherme Pelizzaro Batalha, Airton Ramos, Estevam Vitorio Spinacé, Marcelo Linardi, Adriana N. Geraldes, Dionisio F. da Silva, Sérgio Henrique Pezzin   +7 more
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Effect of SPEEK content on the morphological and electrical properties of PES/SPEEK blend nanofiltration membranes

Desalination, 2009
Polyethersulfone (PES)/poly (ether ether ketone) (SPEEK) blends nanofiltration membrane at different SPEEK contents were prepared using a simple dry-jet wet spinning technique. The SPEEK polymer with fixed sulfonation degree was used for membrane preparation and characterized using FTIR and nuclear magnetic resonance (NMR) spectrometer.
Woei-Jye Lau, A.F. Ismail
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Properties of Composite Membranes of SPEEK and Nanodiamond

MRS Proceedings, 2012
AbstractThe manufacture of composite materials can improve the properties of proton-conducting polymers as membranes in PEM fuel cells. We have investigated composite membranes obtained by dispersion of nanodiamond particles in a sulfonated PolyEtherEtherKetone (SPEEK) matrix. SPEEK is a major proton-conducting aromatic polymer.
Hou H., Maranesi B., Khadhraoui M., Knauth P., Polini R., Di Vona M. L.   +5 more
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All-SPEEK flexible supercapacitor exploiting laser-induced graphenization

2D Materials, 2017
Flexible supercapacitors have emerged as one of the more promising and efficient space-saving energy storage system for portable and wearable electronics. Laser-induced graphenization has been recently proposed as a powerful and scalable method to directly convert a polymeric substrate into a 3D network of few layer graphene as high-performance ...
Lamberti, A., Serrapede, M., FERRARO, GIUSEPPE, Fontana, M., Perrucci, F., Bianco, S., Chiolerio, A., Bocchini, S.   +7 more
openaire   +1 more source