Investigation of the role of benzimidazole-based model compounds on thermal stability and anhydrous proton conductivity of sulfonated poly(ether ether ketone)

2009 ◽  
Vol 180 (9-10) ◽  
pp. 738-745 ◽  
Author(s):  
Puripong Totsatitpaisan ◽  
Suzana P. Nunes ◽  
Kohji Tashiro ◽  
Suwabun Chirachanchai
Keyword(s):  
Thermal Stability ◽  
Proton Conductivity ◽  
Model Compounds ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Sulfonated Poly

scholarly journals Thermal Stability of Sulfonated Poly(Ether Ether Ketone) Films: on the Role of Protodesulfonation

2015 ◽  
Vol 301 (1) ◽  
pp. 71-80 ◽  
Author(s):  
Beata T. Koziara ◽  
Emiel J. Kappert ◽  
Wojciech Ogieglo ◽  
Kitty Nijmeijer ◽  
Mark A. Hempenius ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Thermal Stability Of ◽  
Sulfonated Poly

scholarly journals Sulfonated Poly(ether ether ketone) Doped with Ammonium Ionic Liquids and Nano-Silicon Dioxide for Polymer Electrolyte Membranes

Polymers ◽  
2018 ◽  
Vol 11 (1) ◽  
pp. 7 ◽  
Author(s):  
Shuguo Qu ◽  
Minhui Li ◽  
Chenchen Zhang ◽  
Yuanyuan Sun ◽  
Jihai Duan ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Silicon Dioxide ◽  
Proton Conductivity ◽  
Composite Membranes ◽  
Nano Sio2 ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Nano Silicon ◽  
Sulfonated Poly

Nano-silicon dioxide (SiO2) was incorporated into the matrix of sulfonated poly(ether ether ketone) (SPEEK)/ammonium ionic liquid (AIL) membranes by solution casting, with the aim of reducing ionic liquid leaching and any consequent decrease in proton conductivity. Fourier transform infrared (FTIR) spectra results indicate incorporation of the SPEEK matrix with AIL and nano-SiO2. Scanning electron microscopy (SEM) and X–ray diffraction (XRD) images revealed that incorporation of nano-SiO2 make the ternary composite membranes more flexible. The maximum ion exchange capacity (IEC) value was 3.25 meq/g, and the net structure formed by the nano-SiO2 not only retarded AIL leaching, but also increased the proton conductivity of the composite membranes. AIL leaching from the membranes was between 20% and 30%, which was lower than that of the SPEEK/AIL membrane. The maximum proton conductivity for the SPEEK/AIL/SiO2 membranes reached 10.73 mS/cm at 393 K.

Sign in / Sign up

Export Citation Format

Share Document