Results 11 to 20 of about 592 (175)

Sulfonation Treatment of Polyether-Ether-Ketone for Dental Implant Uses

open access: yesApplied Sciences
There has been a recent uptake in the use of polyether-ether-ketone (PEEK), which is an organic thermoplastic polymer, in the manufacturing of various medical devices, implants, and equipment.
Hussein Hamid, Ihab Safi, Falah Hussein
doaj   +3 more sources

Ultrasonic-Assisted Rapid Preparation of Sulfonated Polyether Ether Ketone (PEEK) and Its Testing in Adsorption of Cationic Species from Aqueous Solutions [PDF]

open access: yesMaterials, 2022
Herein, we report a new approach for the sulfonation of polyether ether ketone (PEEK) following a shorter path of reaction undertaken at 60 °C under ultrasonication.
Laurentiu Baltag   +2 more
exaly   +3 more sources

Modelling IR Spectra of Sulfonated Polyether Ether Ketone (SPEEK) Membranes for Fuel Cells [PDF]

open access: yesKey Engineering Materials, 2020
SPEEK (sulfonated polyether ether ketone) membranes have been prepared and characterized. The SPEEK membrane geometry and theoretical vibration spectra calculated using density functional theory (DFT) as depending from membrane chain length and polymer cross-linking.
Vaivars, Guntars   +2 more
openaire   +5 more sources

Sulfonated Polyether Ether Ketone and Organosilica Layered Nanofiller for Sustainable Proton Exchange Membranes Fuel Cells (PEMFCs)

open access: yesApplied Sciences, 2022
The ease and low environmental impact of its preparation, the reduced fuel crossover, and the low cost, make sulfonated polyether ether ketone (sPEEK) a potential candidate to replace the Nafion ionomer in proton exchange membrane fuel cells (PEMFCs). In
Ernestino Lufrano   +3 more
doaj   +2 more sources

Preliminary Study of the Use of Sulphonated Polyether Ether Ketone (SPEEK) as Proton Exchange Membrane for Microbial Fuel Cell (MFC) [PDF]

open access: yesInternational Journal of Renewable Energy Development, 2018
Sulfonated polyether ether ketone (SPEEK) was utilized as a proton exchange membrane (PEM) in Microbial Fuel Cell (MFC). The SPEEK performance in producing electricity had been observed in MFC using wastewater and glucose as substrates.
Dani Permana   +2 more
doaj   +4 more sources

Influence of Silica/Sulfonated Polyether-Ether Ketone as Polymer Electrolyte Membrane for Hydrogen Fueled Proton Exchange Membrane Fuel Cells

open access: yesInternational Journal of Science and Engineering, 2011
The operation of non-humidified condition of proton exchange membrane fuel cell (PEMFC) using composite sPEEK-silica membrane is reported. Sulfonated membrane of PEEK is known as hydrocarbon polyelectrolyte membrane for PEMFC and direct methanol fuel ...
Sri Handayani   +1 more
doaj   +3 more sources

'Small' Technology, Big Power: Micropore Engineering for High-Performance Flow Battery Membranes. [PDF]

open access: yesSmall
This review systematically analyzes recent advances in redox flow batteries (RFBs) membrane separators, focusing on the shift from traditional ion‐exchange membranes to emerging functional porous membranes: Covalent Organic Frameworks (COFs), Metal‐Organic Frameworks (MOFs), and Polymers of Intrinsic Microporosity (PIMs).
Wei C   +7 more
europepmc   +2 more sources

The ability of SPEEK to promote the proliferation and osteogenic differentiation of BMSCs on PEEK surfaces [PDF]

open access: yesHeliyon
To investigate the ability of sulfonated polyetheretherketone (SPEEK) to promote the proliferation and osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) and compare the effects of different degrees of sulfonation (DS), SPEEK was ...
Shuang Wang   +5 more
doaj   +2 more sources

Utilization of Water-Insoluble Carbon Nitride-Phosphotungstic Acid Hybrids in Composite Proton Exchange Membranes [PDF]

open access: yesMembranes
Phosphotungstic acid (HPW) can retain water in proton exchange membranes to increase proton conductivity; however, its water-soluble nature limits further application.
Xiancan Yuan   +7 more
doaj   +2 more sources

Improving Blood Compatibility of Polyethersulfone Hollow Fiber Membranes via Blending with Sulfonated Polyether Ether Ketone

open access: yesMacromolecular Materials and Engineering, 2016
Appropriate membrane for blood contacting applications requires hemocompatibility and high permeation flux; it should inhibit proteins or platelets adsorption and still possess high permeability. Aiming to improve the polyethersulfone (PES) hollow fiber membrane hemocompatibility, sulfonated polyether ether ketone (SPEEK) is self‐synthesized in the ...
Esmaeil Salimi   +2 more
exaly   +2 more sources

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