Different approaches in sulfonated poly (ether ether ketone) conductivity measurements

Functional Materials and Nanotechnologies 2018

Fedorenko, D.^1^2 ; Vaivars, G.^1^2

Faculty of Chemistry, University of Latvia, Jelgavas Street 1, Riga

LV-1004, Latvia^1

Institute of Solid State Physics, University of Latvia, Kengaraga Street 8, Riga

LV-1063, Latvia^2

关键词: Concentrated sulfuric acids;    Conductivity measurements;    Degree of sulfonation;    Impedance analysis;    Mechanical damages;    Resistance measurement;    Sulfonated poly(ether ether ketone) membranes;    Sulfonated poly(ether ether ketone)s;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/503/1/012030/pdf
DOI  :  10.1088/1757-899X/503/1/012030

来源: IOP

【 摘 要 】

Ion conductivity of sulfonated poly (ether ether ketone) (SPEEK) membranes with various degree of sulfonation (DS) was investigated using impedance analysis with different measuring cell configuration and ion conductivity was calculated from resistances of polymer membranes. SPEEK was synthesized from poly (ether ether ketone) (PEEK) via sulfonation reaction in concentrated sulfuric acid (95-98%). Scanning electron microscopy (SEM) analysis of membrane surface was performed to determine possible mechanical damage to the membrane during resistance measurements.