Abstract
Sulfonated poly ether ether ketone (SPEEK) with a high degree of sulfonation (DS = 0.9)
was mixed with a modified silane bearing a sulfonic acid function (sulfonated
diphenylsilanediole, SDPDO).
Homogeneous composite membranes with several SPEEK:SDPDO ratios, were obtained.
The addition of the ormosil significantly improved the water uptake and solubility properties of
pure SPEEK.
The structural and electrochemical characteristics of the composite membranes were
investigated by means of thermogravimetric analysis (TG), field emission scanning electron
microscopy (FE-SEM), and electrochemical impedance spectroscopy (EIS). The conductivity
values of the composites SPEEK/SDPDO demonstrated that they possess good proton transport
characteristics, thus being suitable for application in Polymer Electrolyte Fuel Cells operating at
intermediate temperature.
| Original language | English |
|---|---|
| Article number | 0885-A02-04 |
| Journal | Materials Research Society Symposium Proceedings |
| Volume | 885E |
| ISSN | 0272-9172 |
| Publication status | Published - 2006 |
| Externally published | Yes |
| Event | 2005 Material Research Society Fall Meeting & Exhibit - Boston, MA, United States Duration: 27 Nov 2005 → 2 Dec 2005 |
Conference
| Conference | 2005 Material Research Society Fall Meeting & Exhibit |
|---|---|
| Country/Territory | United States |
| City | Boston, MA |
| Period | 27/11/2005 → 02/12/2005 |