TAILORABLE POLYIMIDE PREPOLYMER BLENDS, CROSSLINKED POLYMIDES AND ARTICLES FORMED THEREFROM

A polyimide prepolymer blend including a first prepolymer component comprising a first polyimide oligomer having the formula E1-[R1]n-E1 and a second prepolymer component selected from M1, a second polyimide oligomer having the formula E2-[R2]n-E2, and combinations thereof; where R1 and R2 independently comprise: where n is from about 1 to about 5, V is a tetravalent substituted or unsubstituted aromatic monocyclic or polycyclic linking structure, R is a substituted or unsubstituted divalent organic radical. E1 and E2 independently comprise crosslinkable functional groups. M1 comprises a mixture of monomeric compounds including a diamine component, a dianhydride component, and an end group component. The prepolymer blend, prior to cure, provides at least one predetermined prepolymer blend property; and when cured under suitable cure conditions, the prepolymer blend provides a crosslinked polyimide matrix having at least one predetermined crosslinked matrix property.