The present invention relates to novel
imide oligomer compositions, polyimides formed therefrom, and methods for making and using the same. In particular, the invention relates to novel
polyimide oligomers comprising 3,3′,4,4′-
benzophenone tetracarboxylic dianhydride (BTDA), 2-(3,4-dicarboxy phenyl)-1-
phenylacetylene anhydride (PE), and a mixture of 1,3-diaminobenzene and 4,4′-(1,3-phenylenediisopropylidene) bisaniline. The
polyimide oligomers demonstrate low
melt viscosity (these resins are melt processable) while retaining exceptional thermo-oxidative stability, high
glass transition temperature, and good mechanical properties in the cured state.