Bipolar membranes

Details Bipolar membranes Bipolar membranes

B - Operations, Transporting

32

B

18/13, 154/107.2

B32B 27/30 (2006.01) B01D 61/44 (2006.01) C08J 5/22 (2006.01)

Patent

CA 1249908

ADK 1261-1 BIPOLAR MEMBRANES Abstract of the Invention An improved bipolar membrane, a precursor for said membrane and a process for preparing bipolar membranes and precursors are described. In the process a precursor is formed by laminating at least two polymeric layers at least one of which is non-ionic. After the formation of the precursor, the non-ionic layer or layers are chemically treated to form a stable bipolar membrane having high permselectivity and low potential drop. The novel bipolar mem- brane contains an interfacial layer having anionic and cationic domains.

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