Materials having improved nonfouling characteristics and method

Details Materials having improved nonfouling characteristics and method Materials having improved nonfouling characteristics and method

1987-11-13

1990-07-24

Spear, Frank

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

21050033, 21050027, B01D 3100

Patent

active

RE0332739

ABSTRACT:
A method of improving the separatory properties of membranes by the deposition of a fluorinated amphiphilic compound in an oriented Langmuir-Blodgett layer on the membranes surface so as to increase membrane selectivity and counteract membrane surface properties leading to fouling during liquid-liquid separations and enhance gas selectivities of membranes used for gas-gas separations. The use of a fluorinated long-chain pyridinium bromide is specifically disclosed.

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