Wiktionary
n. (context chemistry English) Any polymer whose monomers are imides; used to make high-temperature resins
Wikipedia
Polyimide (sometimes abbreviated PI) is a polymer of imide monomers. Polyimides have been in mass production since 1955. With their high heat-resistance, polyimides enjoy diverse applications in applications demanding rugged organic materials, e.g. high temperature fuel cells, displays, and various military roles. A classic polyimide is Kapton, which is produced by condensation of pyromellitic dianhydride and 4,4'-oxydianiline.
Usage examples of "polyimide".
The yellow was the natural color of Kapton, a puncture-resistant polyimide, reinforced with invisible strands of high-strength carbon superfiber.
Kapton, the polyimide material that was used in most of the next generation armor labs.