Extended amideimide hub for multidimensional oligomers

Abstract

The solvent-resistance and thermal stability of polyamideimides of the general formulae: ##STR1## is improved by capping the amideimides with a crosslinking functionality (Y) containing a residue selected from the group of: ##STR2## wherein R.sub.1 =lower alkyl, lower alkoxy, aryl, aryloxy, substituted alkyl, substituted aryl (either including hydroxyl or halo-substituents), halogen, or mixtures thereof; j=0, 1, or 2: G=--CH.sub.2 --, --O--, --S--, --SO.sub.2 --, --SO--, --CO--, --CHR--, or --CR.sub.2 --; R=hydrogen, lower alkyl, or phenyl; =methallyl or allyl; Me=methyl; R.sub.2 =a trivalent organic radical; and R.sub.3 =a divalent organic radical. The amideimde oligomers may be linear or multidimensional, and can be processed into blends, prepregs, or composites. Methods of making these amideimides and intermediates useful in the syntheses are also described.

Dependencies are inferred from the claim text.