Pyromellitic Dianhydride (PMDA) is a white crystalline powder with excellent chemical stability and reactivity. Its molecular structure contains two carboxylic anhydride groups, giving PMDA a high degree of thermal stability and the ability to cross-link with a variety of compounds. As the cornerstone of polyimide synthesis, PMDA reacts with aromatic diamines at high temperatures to form high-strength polymers, which are widely used in electronics, aviation and other fields, demonstrating its core value in cutting-edge materials science.
