نتایج جستجو برای: Sulfonated poly (ether ether ketone)

تعداد نتایج: 108838  

Journal: :iranian journal of pharmaceutical sciences 0
seyed reza ghaffarian polymer engineering faculty, amirkabir university of technology, tehran, iran homayoun moaddel department of materials science and engineering, university of california,los angeles, ca, usa fatemeh s. majedi biomedical engineering faculty, amirkabir university of technology, tehran, iran young researcher club, islamic azad university, south tehran branch, tehran, iran mohammad mahdi hasani-sadrabadi polymer engineering faculty, amirkabir university of technology, tehran, iran biomedical engineering faculty, amirkabir university of technology, tehran, iran young researcher club, islamic azad university, south tehran branch, tehran, iran

the muscle-like technology would be of enormous advantages for biomedical applications such as medical implants and human assist devices. ionic polymer metal composites (ipmcs) are one kind of biomimetic actuators. an ionic polymer metal composite composed from an ionomer with high ion exchange capacity that packed between two thin metal layers. in the present study we focused on the preparatio...

Journal: :iranian journal of hydrogen and fuel cell 0
mohammad javad parnian school of chemical engineering, iran university of science and technology, narmak, tehran 16846-13114, iran fatemeh gashoul school of chemical engineering, iran university of science and technology, narmak, tehran 16846-13114, iran soosan rowshanzamir green research center (grc) & school of chemical engineering (sche) iran university of science & technology

sulfonated poly (ether ether ketone) (speek) with a low degree of sulfonation (ds = 40%) was prepared for proton exchange membrane fuel cells (pemfc). poly (ether ether ketone) (peek) was sulfonated in concentrated h2so4 under n2 atmosphere and characterized by the hydrogen nuclear magnetic resonance (h-nmr) technique. after preparation of the speek polymer, the obtained polymer was dissolved i...

Journal: :Latvian Journal of Physics and Technical Sciences 2008

Journal: :International Journal of Chemical Engineering and Applications 2014

Sulfonated poly (ether ether ketone) (SPEEK) with a low degree of sulfonation (DS = 40%) was prepared for proton exchange membrane fuel cells (PEMFC). Poly (ether ether ketone) (PEEK) was sulfonated in concentrated H2SO4 under N2 atmosphere and characterized by the hydrogen nuclear magnetic resonance (H-NMR) technique. After preparation of the SPEEK polymer, the obtained polymer was dissolved i...

Journal: :Polymer 2022

Proton transfer in polymer electrolyte membrane is an essential mechanism fuel cell (PEMFC). The development of PEM mostly relies on modification with proton conductive species followed by casting. This brings the random existence to result a limit conductivity. present work proposes alignment species, i.e., donor and acceptor chains, through surface-initiated polymerization so that proceeds ef...

Journal: :Chemical communications 2017
Md Abdul Aziz Kwangjin Oh Sangaraju Shanmugam

A highly ion-selective membrane for vanadium redox flow batteries (VRBs) consisting of sulfonated poly(arylene ether ketone) (SPAEK) and polyoxometalate coupled with a graphene oxide was designed and fabricated. The SPAEK/PW-mGO composite membrane showed an effectively low self-discharge rate and excellent Coulombic efficiency (98.73%) in VRBs.

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