Direct Polycondensations of N,N'-(4,4'-Oxydiphthaloyl)-bis-L-leucine Diacid by use of Tosyl chloride in the presence of N,N-Dimethylformamide.

S. Mallakpour, and E. Kowsari, Adv. Polym. Tech. 2005, 16, 795-799. Direct Polycondensations of N,N'-(4,4'-Oxydiphthaloyl)-bis-L-leucine Diacid by use of Tosyl chloride in the presence of N,N-Dimethylformamide.