Halogen Resistant Amides, Polyamides, and Membranes Made From the Same

摘要

A halogen resistant polyamide is formed from the reaction product of an amine monomer and an acid chloride monomer wherein the amino group of the starting amine monomer is separated from the aromatic amine ring system by an alkyl group and (i) minimizes halogenation on the amine and (ii) minimizes N-halogenation at a pH range of approximately 7 to approximately 10.5. A membrane is made from the polyamide for use, for example, in a reverse osmosis desalination unit.

主权项

1. A halogen resistant amide polymeric composition comprising an amine-based aromatic monomer that has the nitrogen atom on the amino group separated by at least two sigma bonds from the benzene ring system.