초록 ▼

The products of the invention are end-capped polyimide oligomers prepared from a dianhydride of an aromatic tetracarboxylic acid such as 3,3′4′,4′-benzophenonetetracarboxylic acid, an aromatic diamine, and a 1-(aminoaryl)-3-hydroxy-3-methyl-1-butyne. The structure of the polyimide oligomers is shown

The products of the invention are end-capped polyimide oligomers prepared from a dianhydride of an aromatic tetracarboxylic acid such as 3,3′4′,4′-benzophenonetetracarboxylic acid, an aromatic diamine, and a 1-(aminoaryl)-3-hydroxy-3-methyl-1-butyne. The structure of the polyimide oligomers is shown in FIG. 3.

대표청구항 ▼

A product selected from the group consisting of: A. An acetylene end-capped polyimide oligomer having the structure: [Figure] where R has the structure: [Figure] or [Figure] [Figure] where X is －CF2－, or a bond, where R′is selected from the group consisting of a phenylene group, a naphthylene group,

A product selected from the group consisting of: A. An acetylene end-capped polyimide oligomer having the structure: [Figure] where R has the structure: [Figure] or [Figure] [Figure] where X is －CF2－, or a bond, where R′is selected from the group consisting of a phenylene group, a naphthylene group, or [Figure] [Figure] where X is as defined above; and where R″is an aryl group bearing a substituent having the structure: [Figure] B. A first precursor of an acetylene end-capped polyimide oligomer of (A) having the structure: [Figure] where R, R′and R″are as defined above; and C. A second precursor of an acetylene end-capped polyimide oligomer of (A) having the structure: [Figure] where R, R′and R″are as defined above and R″′is the alcohol moiety from which the diester of the aromatic tetracarboxylic acid was prepared where in each of the above formulas n has an average value from 1 to about 4.