Chemically modified semipermeable membranes and their use in rev

Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...

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21050028, 21050029, 21050033, 21050037, 21050038, 21050039, 21050041, 21050042, B01D 1300, B01D 1304

Patent

active

046907653

ABSTRACT:
Semipermeable membranes of modified polysulfones are provided which comprises repeating units of the formula

REFERENCES:
patent: 3984399 (1976-10-01), Weber et al.
patent: 4260652 (1981-04-01), Taketani et al.
patent: 4286015 (1981-08-01), Yoshida et al.
Mitchell et al., Tetrahedron Letters, 42, pp. 3795-3798 (1976).
Frechet et al., JACS, 93:2, pp. 492-496 (1971).
Sorenson et al., Preparative Methods of Polymer Chemistry, 2nd ed., pp. 169-170 (1968).

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