Aromatic polyethers containing cyano groups for gas separation

Details Aromatic polyethers containing cyano groups for gas separation Aromatic polyethers containing cyano groups for gas separation

1991-04-25

1992-01-14

Foelak, Morton

Gas separation

Means within gas stream for conducting concentrate to collector

55 16, 521180, 521189, 528211, 528125, 528128, 528171, 528173, 528174, 528206, 528208, 528210, B01D 5322

Patent

active

050806980

ABSTRACT:
The disclosed invention is directed to polycyanoarylether membranes. These membranes are formed by reacting an aromatic diol with a dihalobenzonitrile or dinitrobenzonitrile in the presence of a base and a polar, aprotic solvent. These membranes can be provided as either homopolymers or copolymers.

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D. K. Mohanty et al., "Synthesis and Characterization of Polyarylene Ether Nitriles"; Polymer Preprints 27; pp. 147-149 (1986).
D. K. Mohanty et al.; "Poly(Arylene Ether Sulfones) and Related Materials via a Potassium Carbonate, N-Methyl Pyrrolidone Process", Polymer Preprints 23(1); pp. 284-286; (1982).

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