Insitu molecular composites based on rigid-rod polyimides

摘要

A polymer which can undergo thermally-induced transformation to provide a reinforcing component and a matrix component. This polymer has repeating units of the formula: <IMAGE> <IMAGE> wherein Z is selected from the group consisting of dialkyl amino thermoplastic moieties and dialkyl amino moieties which can undergo insitu reaction to form a thermoset. Dialkyl amino moieties which can undergo insitu reaction to form thermosets include the following: NRQ and <IMAGE> wherein Q is <IMAGE> R is -CH3 or Q and a has a value of 1 to 3. Dialkyl amino thermoplastic moieties include the following: <IMAGE> <IMAGE> <IMAGE> <IMAGE> wherein a has a value of 1 to 3, b has a value of 5 to 100, X is -S-, -O-, or -NH- and Ph is phenylene.