Loading patent…
AssigneeUniversitat Stuttgart Lehrstuhl und Institut fur Chemische Verfahrenstechnik
InventorsJochen Kerres, Wei Cui
Estimating the term…
The present invention relates to polymer blends and polymer blend membranes which consist of a polymeric sulfonic acid and of a polymer which contains primary, secondary or tertiary amino groups, which are prepared via mixing of a salt of the polymeric sulfonic acid with the polymer which contains primary, secondary or tertiary amino groups. The invention further relates to the use of polymer blend membranes in membrane fuel cells, polymer electrolyte membrane fuel cells (PEM fuel cells) or direct methanol fuel cells (DMFC), in membrane electrolysis, in aqueous or non-aqueous electrodialysis, in diffusion dialysis, in the perstractive separation of alkenes from alkene/alkane mixtures (here the membranes are in the SO3Ag form, where the Ag+ forms a reversible complex with the alkene (→facilitated transport)), in pervaporative separation of water from water/organics mixtures, or in gas separation.
A process for the preparation of ion-exchange membranes, comprising reacting solutions of polymeric sulfonic acid salts having the general formula
Blend polymers and blend polymer membranes, obtained by a process comprising:
Dependencies are inferred from the claim text.