Bipolar membranes

Details Bipolar membranes Bipolar membranes

1983-11-23

1986-04-22

Buffalow, Edith

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

428520, 521 27, 2105002, B32B 2730

Patent

active

045842469

ABSTRACT:
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 membrane contains an interfacial layer having anionic and cationic domains.

REFERENCES:
patent: 3417459 (1968-12-01), Pomerantz et al.
patent: 4116889 (1978-09-01), Chlanda et al.
patent: 4258900 (1981-03-01), Dege et al.

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