Results 11 to 20 of about 6,021 (207)

Composite Sulfonated Polyether-Ether Ketone Membranes with SBA-15 for Electrochemical Energy Systems. [PDF]

Materials (Basel), 2020
The aim of this work is the evaluation of a Sulfonated Poly Ether-Ether Ketone (S-PEEK) polymer modified by the addition of pure Santa Barbara Amorphous-15 (SBA-15, mesoporous silica) and SBA-15 previously impregnated with phosphotungstic acid (PWA ...
Rico-Zavala A, Pineda-Delgado JL, Carbone A, Saccà A, Passalacqua E, Gurrola MP, Alvarez A, Rivas S, Ledesma-García J, Arriaga LG.   +9 more
europepmc   +6 more sources

Study of High Performance Sulfonated Polyether Ether Ketone Composite Electrolyte Membranes. [PDF]

Polymers (Basel), 2019
In this study, high performance composite electrolyte membranes were prepared from polyether ether ketone polymeric material. An initial sulfonation reaction improved the membrane hydrophilicity and its water absorbability and thus enhanced the ionic ...
Wu G, Lin SJ, Hsu IC, Su JY, Chen DW.
europepmc   +5 more sources

Tribological Behavior of Sulfonated Polyether Ether Ketone with Three Different Chemical Structures under Water Lubrication. [PDF]

Polymers (Basel)
With the development of the shipbuilding industry, it is necessary to improve tribological properties of polyether ether ketone (PEEK) as a water-lubricated bearing material.
Chen X, Hu T, Wu W, Yi X, Li F, Zhang C.
europepmc   +4 more sources

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

Key Engineering Materials, 2020
Authors acknowledge support from LSC project No 2014/666 ERDF and students ( ) support from project 2DP/2.1.1.1.0/14/APIA/VIAA/009.SPEEK (sulfonated polyether ether ketone) membranes have been prepared and characterized. The SPEEK membrane geometry and
Krūkle-Bērziņa, Kristīne, Markus, Madara, Vaivars, Guntars   +2 more
core   +6 more sources

Friedel–Crafts Crosslinked Highly Sulfonated Polyether Ether Ketone (SPEEK) Membranes for a Vanadium/Air Redox Flow Battery [PDF]

Membranes, 2013
Highly conductive and low vanadium permeable crosslinked sulfonated poly(ether ether ketone) (cSPEEK) membranes were prepared by electrophilic aromatic substitution for a Vanadium/Air Redox Flow Battery (Vanadium/Air-RFB) application.
Géraldine Merle, Filipoi Carmen Ioana, Dan Eugen Demco, Michel Saakes, Seyed Schwan Hosseiny   +4 more
doaj   +6 more sources

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

Biosci Rep
Natural and synthetic polymeric materials, particularly soft and hard tissue replacements, are paramount in medicine. We prepared calcium-incorporated sulfonated polyether-ether ketone (SPEEK) polymer membranes for bone applications.
Saravanabhavan SS, Narayanaswamy Venkatesan P, Jonna N, Vasantha Palaniappan K, Sarang Z, Natesan B, Sergi CM.   +6 more
europepmc   +2 more sources

Polydopamine grafting polyether ether ketone to stabilize growth factor for efficient osteonecrosis repair [PDF]

Scientific Reports
This study examines the biocompatibility, osteogenic potential, and effectiveness of polyether ether ketone (PEEK) composites for treating osteonecrosis, seeking to establish a theoretical basis for clinical application.
Yi Sun, Jingyun Liu, Kaijia Chen, Nannan Zhong, Chengpeng He, Xinming Luan, Xiaobei Zang, Jianbo Sun, Ning Cao, Wenbo Wang, Qiang Ren   +10 more
doaj   +2 more sources

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

Applied 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, Cataldo Simari, Apostolos Enotiadis, Isabella Nicotera   +3 more
doaj   +3 more sources

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

Heliyon
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, Jun-xiong Ma, Liang Zheng, Hong Wang, Hai-long Yu, Yu Chen   +5 more
doaj   +2 more sources

Composite Membranes of Sulfonated Poly(ether ether ketone) with Active Carbon: Composite Preparation and Investigation of their Properties for Potential Application for CO2 Electrochemical Reduction [PDF]

Medžiagotyra, 2020
In this study, synthesis of sulfonated poly(ether ether ketone) (SPEEK) was performed using sulfonation method with concentrated sulfuric acid. Polymer with three degrees of sulfonation was obtained: 0.87; 0.82 and 0.74.
Deniss FEDORENKO, Guntars VAIVARS
doaj   +3 more sources