Aromatic diamines containing three ether-linked-benzonitrile moieties, polymers thereof, and methods of making the same

Abstract

The present invention includes compositions and methods of preparation for symmetrical and unsymmetrical diamines containing three ether-linked benzonitrile moieties that may be used as monomers for the manufacture of a variety of functional polymers. For example, the presently disclosed multi(ether-benzonitrile) diamines may polymerize with: (i) a dianhydride to form a polyimide; (ii) a diacid chloride directly or with a dicarboxylic acid (diacid) in conjunction with a suitable promoter/catalyst combination such as triethylphosphite/pyridine to form a polyamide; and (iii) 1,2,4-benzenetricarboxylic anhydride (trimellitic anhydride), trimellitic anhydride chloride, or a diacid/diacid chloride derived from trimellitic anhydride and an aromatic diamine to form a poly(amide-imide).

Dependencies are inferred from the claim text.