Direct Polyamidation of 4,4'-(Hexafluoroisopropyliden)-N,N'-bis-phthaloyl-L-isoleucine with Different Aromatic Diamines via Vilsmeier Adduct Derived from Tosyl Chloride and N,N-Dimethylformamide.

S. Mallakpour, and E. Moghaddam, Polym. Bull. 2006, 56, 339-347. Direct Polyamidation of 4,4'-(Hexafluoroisopropyliden)-N,N'-bis-phthaloyl-L-isoleucine with Different Aromatic Diamines via Vilsmeier Adduct Derived from Tosyl Chloride and N,N-Dimethylformamide.