سال انتشار: ۱۳۹۰

محل انتشار: کنفرانس بین المللی فرآورش پلیمرها

تعداد صفحات: ۹

نویسنده(ها):

SeyyedEmadodin Shakeri – Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran, Iran
Mahdi Tohidian –
Seyyed Reza Ghaffarian –
Mohammad Mahdi Hasani-Sadrabadi –

چکیده:

Poly(ether ether ketone) (PEEK) was sulfonated at various degrees with sulfuric acid .The optimum degree ofsulfonation was determined. In the next step various amount of different types of organically modifiedmontmorillonite (OMMTs), were introduced to the optimum sPEEK via the solution intercalation technique.The selectivity parameter – ratio of proton conductivity to methanol permeability– was identified and measured for each sample at 250c. the samples were determined by X-Ray diffraction to show the dispersion of differenet OMMTs in membranes. Finally the membrane based on sPEEK / MMT 1%(cloisite30B),as the optimum nano clay composition, exhibits a high selectivity andpower density at the concentrated methanol feed. Moreover, the optimum nanocompositemembrane compared to Nafion®۱۱۷ membranes. It is found that the optimum nanocomposite membrane not only provides higher performance in comparisonto the neat sPEEK and Nafion®۱۱۷ membranes, but also exhibits a high open circuit voltage (OCV) at theelevated methanol concentration.