Macromolecular Rapid Communications, Vol.21, No.8, 481-484, 2000
Polyimides from diamine-acid salts and tetracarboxylic dianhydrides
Communication: Polyimides can be synthesized from a diamine-acid salt and a dianhydride in the presence of excess triethylamine, thereby avoiding the use of air-sensitive aromatic diamine compounds as monomers.