Sökning: "polysulfone"
Visar resultat 1 - 5 av 9 avhandlingar innehållade ordet polysulfone.
1. Proton-Conducting Polymers and Membranes for Fuel Cells-Preparation and Properties
Sammanfattning : The development of new materials for use in fuel cells is of importance for the probable replacement of the combustion engine by this technology in public vehicles in the future. The proton-conducting polymer electrolyte membrane is one of the main components in the fuel cell. LÄS MER
2. Membrane Electrode Assemblies Based on Hydrocarbon Ionomers and New Catalyst Supports for PEM Fuel Cells
Sammanfattning : The proton exchange membrane fuel cell (PEMFC) is a potential electrochemicalpower device for vehicles, auxiliary power units and small-scale power plants. In themembrane electrode assembly (MEA), which is the core of the PEMFC single cell,oxygen in air and hydrogen electrochemically react on separate sides of a membraneand electrical energy is generated. LÄS MER
3. Proton-Conducting Sulfonated and Phosphonated Polymers and Fuel Cell Membranes by Chemical Modification of Polysulfones
Sammanfattning : The proton exchange membrane fuel cell (PEMFC) is currently emerging as an efficient and environmentally friendly power source. The technology is very complex and relies ultimately on materials and components which need further development. LÄS MER
4. Aromatic Polymers Functionalized with Anionic and Cationic Groups for Ion Exchange Membranes
Sammanfattning : Fuel cells, redox flow batteries and some water desalination technologies such as reverse osmosis and electrodialysis require efficient ion exchange membranes to perform in an optimum way. Thus, by enhancing the properties of these membranes there is a possibility to improve this type of applications and technologies. LÄS MER
5. The biological mechanisms in neutrophil and eosinophil adhesion and transmigration in vitro and theur relation to the inflammatory process in vivo
Sammanfattning : In inflammatory reactions, eosinophils and neutrophils constitute the major classes of granulocytes that emigrate from the bloodstream into the tissues. The recruitment of inflammatory cells constitutes a multi-step process that includes sequential adhesion and transmigration through, the endothelial lining, the underlying basement membrane and a variety of extracellular matrix components. LÄS MER