Kapton Is a Polyimide Developed by DuPont Which Has an Excellent

question 34

Multiple Choice

Kapton is a polyimide developed by DuPont which has an excellent stability in the temperature range of 0K to 673K) . Therefore, it is widely used in the aircraft and space industry although its resistance to mechanical wear is inferior to that of other polymers, such as Mylar (polyethylene terephthalate) . Which of the following molecules can be either starting materials or intermediates in the synthesis of Kapton?

• A) I, II
• B) II, III
• C) I, III
• D) III, IV

---

Definitions:

Antietam

A decisive battle during the American Civil War fought on September 17, 1862, in Maryland, marking the bloodiest single-day battle in American history with significant strategic implications.

Casualties

Individuals who are killed, wounded, or missing as a result of military conflict or accidents.

Thirteenth Amendment

Constitutional amendment adopted in 1865 that irrevocably abolished slavery throughout the United States.

Ironclad Ships

Warships in the 19th century that were covered with iron or steel armor plates, making them resistant to cannon fire and changing naval warfare.