Modified sulfonamide polymeric matrices
OwnerDavid Allen Olson, Qingshan Jason Niuinventors
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Abstract
The present disclosure relates to a matrix comprising a modified sulfonamide polymer, processes for producing the same and uses thereof. In particular, the matrix comprises sulfonyl compound residues and aliphatic amine compound residues, and further comprises acyl compound residues and amine compound residues having at least two amine moieties, wherein the aliphatic amine compound residues and amine compound residues are different.
Claims43
A modified sulfonamide polymeric matrix, wherein the matrix is composed of
- (i) sulfonyl compound residues having at least two sulfonyl moieties;
- and
- (ii) aliphatic amine compound residues having at least two amine moieties;
- and is further composed of at least one of:
- (iii) acyl compound residues having at least two acyl moieties;
- and/or
- (iv) amine compound residues having at least two amine moieties,
- wherein the aliphatic amine compound residues and amine compound residues are different.
A method of modifying a property of a reverse osmosis or nano-filtration membrane comprising a modified sulfonamide polymerix matrix on a substrate, the method comprising contacting the membrane with a polyol solvent and a surfactant for a time sufficient to modify the property of the membrane.
Dependencies are inferred from the claim text.