Results 101 to 110 of about 2,265 (207)

Effect of operating temperature on the behavior of promising SPEEK/cSMM electrolyte membrane for DMFCs

, 2013
The behavior of sulfonated poly (ether ether ketone) (SPEEK) with different degrees of sulfonation (DS) (60-76%) blended with charged surface modifying macromolecule (cSMM) at different operating temperatures as an electrolyte membrane for direct ...
AF Ismail (14078463), M Ghasemi (7756199), T Matsuura (13471276), Hamid Ilbeygi (13917768), MNAM Norddin (14582621), A Mayahi (14574914), MHD Othman (14130174)   +6 more
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Functionalized microporous sulfonated polyetheretherketone: Osteogenesis and anti-osteoclastogenesis effects via ROS and NLRP3-mediated pyroptosis in macrophages

Materials & Design
The treatment of osteoporotic implant failures tends to be challenging due to an imbalance in bone homeostasis. Recently, the accumulation of intracellular reactive oxygen species (ROS) and activation of the inflammasome containing nucleotide-binding ...
Chao Yang, Kechao Zhu, Guohui Liu, Xiangwei Yuan, Qi Wang, Xianlong Zhang   +5 more
doaj   +1 more source

Peter Speek and Migratory Labor: An Estonian Revolutionary Finds the Real America

, 2005
Peter Alexander Speek arrived in the United States in the fall of 1908 at the age of 35, “having in my pocket only 4c and knowing hardly more English words.” A leader of revolutionary activities against Russian rule in his native Estonia, Speek came to ...
Greg Woirol
core   +1 more source

SPEEK membrānu hidratācijas – dehidratācijas pētījumi

, 2015
SPEEK membrānu hidratācijas-dehidratācijas pētījumi. Sala, E., zinātniskais vadītājs Dr. ķīm., pētnieks Veldre, K. Bakalaura darbs, 45 lappuses, 30 attēli, 7 tabulas, 56 literatūras avoti. Latviešu valodā. Darbā ir veikti dažādu SPEEK membrānu ūdens satura pētījumi, izmantojot termogravimetriju un diferenciāli termisko analīzi.
openaire   +1 more source

Effect of UV irradiation time on properties SPEEK-MC membrane / Mohamad Hazrul Haziq Azmi [PDF]

, 2013
This project focusing on Polymer Electrolyte Membrane Fuel Cells (PEMFCs). Sulfonated Poly Ether Ether ketone (SPEEK) was used to replace Nafion as a membrane.
Azmi, Mohamad Hazrul Haziq
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STUDIES ON SPEEK/PES-C AND SPEEK/SPES-C BLEND PROTON-EXCHANGE MEMBRANES

Acta Polymerica Sinica, 2009
Qijun GAO, Yuxin WANG, Li XU, Guoqiang WEI, Zhitao WANG   +4 more
openaire   +1 more source

SPEEK/Polyimide Blends for Proton Conductive

, 2009
A series of membranes, based on sulphonated poly(ether ether ketone) (SPEEK)/polyimide (PI) blends, was prepared at different casting conditions. They were characterised by SEM, FTIR, DMTA, DSC, TGA, water/methanol pervaporation and impedance spectroscopy.
Maab, H., Schieda, M., Yave, W., Shishatskiy, S., Pereira Nunes, S.   +4 more
openaire   +1 more source

Effect of Sulfonation Degree and PVDF Content on the Structure and Transport Properties of SPEEK/PVDF Blend Membranes

, 2019
Sulfonated poly (ether ether ketone) (SPEEK) with four different sulfonation degrees (SDs) were prepared, and mixed with polyvinylidene fluoride (PVDF) to prepare four series of SPEEK/PVDF blend membranes.
Zhai, Shaoxiong, Wei Yang, Jun Lin, Lin, Jun, Shaojian He, Shaoxiong Zhai, Xue, Yang, He, Shaojian, Zhang, Chong, Yang Xue, Yang, Wei, Chong Zhang   +11 more
core   +1 more source

Fabricanon of as-spun SPEEK as a function of degree of sulfonation

, 2015
The purpose of this study was 10 determine the effect of degree of sulfonation (DS) on electrospun sulfonated poly (ether ether ketone) (SPEEK) fiber. SPEEK was prepared via sulfonation process by sulfonating native poly (ether ether ketone) (PEEK) with ...
Anam, Muhammad Noorul, Ismail, Ahmad Fauzi, Yusof, Norhaniza, Jaafar, Juhana, Junoh, Hazlina, Wan Salleh, Wan Norharyati, Othman, Mohd Hafiz Dzarfan, A. Rahman, Mukhlis   +7 more
core  

Contribution of nanoclays to the barrier properties of SPEEK/Cloisite15a® membrane for DMFC application

, 2009
The objective of this study is to synthesis and characterize polymer-inorganic nanocomposite sulfonated poly (ether ether ketone) (SPEEK) membranes filled with CloisitelSA® clay by introducing 2,4,6-triaminopyrimidine (TAP) as a compatibilizer for DMFC ...
Jaafar, J., Ismail, A. F.
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