Research Papers by Jochen Meier-Haack

3. Results and discussion All base polymers were obtained after precipitation as white to beige powders in quantitative yields and with high molecular weights (hinh. > 0.5 dl/g). Membranes with a theoretical ionexchange capacity (IEC) ranging from 0 to 2.08 mmol/g (PES) or from 0 to 2.25 mmol/g (PPE

Surface modification with hydrophilic polymers is a suitable method to alter the interactions between the membrane surface and feed components resulting in a lower tendency to fouling. Furthermore, the results obtained so far might lead to the conclusion, that the surface modification in particular

An alternative method using established polymer processing and membrane formation processes to prepare hydrophilic membranes based on acid modified polyolefins is introduced. This process includes blend formation by reactive extrusion of functionalized polyolefins (polypropylene; PP) and a hydrophil

Composite membranes for pervaporation of water/alcohol mixtures were prepared by consecutive alternating adsorption of poly(acrylic acid) (polyanion) and poly(ethylenimine) (polycation) on a polyamide-6 substrate. The influence of preparation conditions on the pervaporation separation properties of