| 摘要 |
Process for the production of a composite membrane comprising a porous film of a first polymer, the pores of which contain a second polymer, by depositing the second polymer from a solution in the pores of the first polymer, characterised in that the film of the first polymer is contacted with the surface of a first electrode which, together with at least one counterelectrode, is present in the solution of the second polymer and with such a potential difference being applied across the first electrode and the counterelectrode that the second polymer moves towards the first electrode, in which process it must pass the film. |
