Intermolecular ionic cross-linked proton conducting electrolyte membranes derived from branched sulfonated poly(ether ether ketone)s with benzoxazole pendants

2014 ◽  
Vol 39 (13) ◽  
pp. 7060-7068 ◽  
Author(s):  
Ye Li ◽  
Yuan Liang ◽  
Xitao Wang ◽  
Min Xie ◽  
Xincai Liu ◽  
...  
Keyword(s):  
Proton Conducting ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Electrolyte Membranes ◽  
Ether Ketone ◽  
Sulfonated Poly

scholarly journals High degree sulfonated poly(ether ether ketone) blend with polyvinylidene fluoride as a potential proton-conducting membrane fuel cell

2019 ◽  
Vol 32 (1) ◽  
pp. 103-115 ◽  
Author(s):  
Syarifah Noor Syakiylla Sayed Daud ◽  
Muhammad Noorul Anam Mohd Norddin ◽  
Juhana Jaafar ◽  
Rubita Sudirman
Keyword(s):  
Mechanical Properties ◽  
Fuel Cell ◽  
Polyvinylidene Fluoride ◽  
Proton Conducting ◽  
Proton Conducting Membrane ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Speek Membrane ◽  
Sulfonated Poly

Sulfonated poly(ether ether ketone) (sPEEK) membrane is a promising proton-conducting membrane for fuel cell. However, the performance and lifetime of sPEEK membrane depend on the degree of sulfonation (DS). High DS of sPEEK increases the performance, but the mechanical properties could deteriorate progressively which affect its lifetime. Thus, this study investigated the effect of adding polyvinylidene fluoride (PVDF) into high DS (80%) of sPEEK through solution blending method toward its physicochemical properties and morphology structures. The PVDF concentration was varied to 5, 10, 15, and 20 wt% relative to the sPEEK content. The existence of hydrophobic PVDF in 80% sPEEK improved the mechanical properties where the water uptake and swelling degree of membrane decreased, whereas the tensile strength increased. The sPEEK/PVDF 15 exhibited the highest proton conductivity (46.23 mS cm−1) at 80°C. Incorporating PVDF into high DS of sPEEK enhanced the mechanical properties which can be used as a proton-conducting membrane for fuel cell that may improve the performance and prolong the lifetime of the cell.

scholarly journals Proton conducting membranes based on cross-linked sulfonated poly(ether ether ketone) (SPEEK)

2004 ◽  
Vol 233 (1-2) ◽  
pp. 93-99 ◽  
Author(s):  
Serguei D Mikhailenko ◽  
Keping Wang ◽  
Serge Kaliaguine ◽  
Peixiang Xing ◽  
Gilles P Robertson ◽  
...  
Keyword(s):  
Proton Conducting ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Conducting Membranes ◽  
Sulfonated Poly
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