초록 ▼

The products of the invention are acetylene end-capped polyimide oligomers prepared from a dianhydride of an aromatic tetracarboxylic acid such as 3,3′,4,4′benzophenonetetracarboxylic acid, an aromatic triamine, and an acetylene-substituted aromatic monoamine. The structure of the polyimide oligomer

The products of the invention are acetylene end-capped polyimide oligomers prepared from a dianhydride of an aromatic tetracarboxylic acid such as 3,3′,4,4′benzophenonetetracarboxylic acid, an aromatic triamine, and an acetylene-substituted aromatic monoamine. 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 whose principal component has the structure: [Figure] where R has the structure: [Figure] or [Figure] where X is [Figure] or a bond; where R′is an aryl group; and and where R″is selected from the group con

A product selected from the group consisting of: A. An acetylene end-capped polyimide oligomer whose principal component has the structure: [Figure] where R has the structure: [Figure] or [Figure] where X is [Figure] or a bond; where R′is an aryl group; and and where R″is selected from the group consisting of a phenylene group, a naphthylene group, or [Figure] [Figure] [Figure] and where X is as defined above; B. A first precursor of an acetylene end-capped polyimide oligomer of (A) whose principal component has the structure: [Figure] [Figure] and where R, R′, and R″are defined as above; and C. A second precursor of an acetylene end-capped polyimide oligomer of (A) whose principal component has the structure: [Figure] [Figure] where R, R′, and R″are as defined above, and where R′″is the alcohol moiety from which the diester of the aromatic tetracarboxylic acid was prepared.