Home Display Materials Polyimide (PI) material Pyromellitic Dianhydride (PMDA) Pyromellitic Dianhydride (PMDA) CAS: 89-32-7 Category: Polyimide (PI) material Related products p-PhenylenediaMine(p-PDA)CAS: 106-50-3 Polyimide (PI) material 2,2′-Bis(trifluoromethyl)-4,4′- diaminodiphenyl ether (6FODA)CAS: 344-48-9 Polyimide (PI) material 4,4′-Oxydiphthalic anhydrideCAS: 1823-59-2 Polyimide (PI) material 6,6′-Diaminodiphenylmethane-3,3′-dicarboxylic acid (MBAA)CAS: 7330-46-3 Polyimide (PI) material