Polyethers, membrane technology

Microfiltration membranes can be used as pretreatment for other membrane technologies and to remove microbes and total suspended sohds (TSS) including fibers and particles. Retention of salts and dissolved organics is negligible, if they are not bound to the suspended sohds. MF can be used for the recovery of coating color pigments. MBRs generally use UF or MF membranes. The materials used in microfiltration are polyvinylidenefluoride (PVDF), polypropylene, polyethylene, polysulfone, polyether suUbne, Teflon, and ceramic materials. 

Low-temperature process Production of relatively pure CO2 stream Both chemical and physical absorption are mature technologies Commercial polymeric membranes are available (polyimide, polysulfone, polyether-polyamide copolymer, etc.) and can be used with an adsorption liquid (e.g. MEA)... 

Taking advantage of the possibilities offered by polymer chemistry for creating novel materials, a new generation of polymeric membranes for HT-PEM fuel cells has been designed and developed. The herein presented aromatic polyether sulfones carrying main chain pyridine units have been proven to be a reliable polymer electrolyte material for the HT-PEM fuel cell technology. These materials exhibit certain... 

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