New Optically Active Poly(amide-imide-urethane) Thermoplastic Elastomers Derived from Poly(ethylene glycol diols), 4,4'-Methylene-bis-(4-phenylisocyanate), and a Diacid Based Amino acid by Two Step Method under Microwave Irradiation

S. Mallakpour; and F. Rafiemanzelat. J. Appl. Polym. Sci. 2005. 98, 1781-1792, New Optically Active Poly(amide-imide-urethane) Thermoplastic Elastomers Derived from Poly(ethylene glycol diols), 4,4'-Methylene-bis-(4-phenylisocyanate), and a Diacid Based Amino acid by Two Step Method under Microwave Irradiation.