High temperature polymer blends membrane applications

Abstract This chapter examines the use of high temperature polymers as membranes, fuel cells and solar cells. Also, it considers the application of such materials for aerospace developments. The methods for characterization and testing of specific high temperature polymer blends for each of these applications are reviewed. 

High temperature polymer blends (HTPBs) for membrane applications... 

Gourdoupi, N. Daletou, M. Neophytides, S. Kallitsis, I, High temperature polymer electrolyte membranes and membrane electrode assemblies based on blends of aromatic polyethers. International Application WO 2008/032228 a2,... 

Poly(phthalazinoneethersulfoneketone) (PPESK) is a recent high performance, high temperature resistance polymer, but with high viscosity. However, blends with PEI or PES were found to improve processability and allowed reinforcement with carbon fiber. The blends showed excellent mechanical properties. PPESK was also found to be an excellent basic material for the production of a diversity of membranes with applications ranging from water purification to fuel cell. " ... 

Polysulfone (PSU) (typical structure shown in Figure 5.7) and polyethersulfone (PES) (typical structure shown in Figure 5.8) are highly versatile engineering polymers that have been applied in a variety of applications, including gas separation, membrane filtration, pervaporation, and electrodialysis. They have excellent chemical and mechanical stability, a relatively high glass transition temperature, and are easily cast as films from common aprotic solvents such as l-methyl-2-pyrrolidone (NMP) [32] and A lV-dimethylacetamide (DMAc) [33]. PSU has most commonly been evaluated for DMFCs as a blend with other... 

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