Ionic liquids as Novel Solvents and Catalysts for the Direct Polycondensation of N,N'-(4,4'-Oxydiphthaloyl)-bis-L-phenylalanine Diacid with Various Aromatic Diamines.

S. Mallakpour, and E. Kowsari, J. Polym. Sci. Part A, 2005, 43(24), 6545-6553. Ionic liquids as Novel Solvents and Catalysts for the Direct Polycondensation of N,N'-(4,4'-Oxydiphthaloyl)-bis-L-phenylalanine Diacid with Various Aromatic Diamines.