Cationically Charged Membranes
OwnerAdrianus Jacobus Van Rijen, Jacko Hessinginventors
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Abstract
Cationically charged membranes obtainable from curing a composition comprising an aromatic heterocyclic compound, wherein the aromatic heterocyclic compound comprises: a) an aromatic heterocyclic ring: b) at least two polymerisable groups: and c) a cationically charged nitrogen atom. The membranes are mechanically strong, have a high charge density and maintain good permselectivity even after exposure to harsh conditions such as extremes of pH.
Claims29
A cationically charged membrane obtainable from curing a composition comprising an aromatic heterocyclic compound, wherein the aromatic heterocyclic compound comprises:
- a) an aromatic heterocyclic ring;
- b) at least two polymerisable groups;
- and
- c) a cationically charged nitrogen atom.
A composition comprising:
- (a) an aromatic heterocyclic compound comprising:
- a) an aromatic heterocyclic ring:
- b) at least two polymerisable groups;
- and c) a cationically charged nitrogen atom;
- optionally (b) a cationically charged compound comprising only one polymerisable group;
- optionally (c) one or more radical initiators;
- optionally (d) one or more monomers free from cationically charged groups;
- and
- optionally (e) inert solvent.
Dependencies are inferred from the claim text.