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In this article,six new optically active copoly(amide-imide)s(10a-f) were synthesized through the direct polycondensation reaction of N-phthalimido-L-aspartic acid(4) with 1,5-diamino naphthalene(8),3,4-diamino benzophenone(9) in the presence of therphthahc acid(7),fumaric acid(6) and adipic acid(5) as a second diacid in a medium consisting of N-methyl-2-pyrrolidone,triphenyl phosphite, calcium chloride and pyridine.The resulting copolymers were fully characterized by means of FT-IR spectroscopy,elemental analyses, inherent viscosity,solubility tests and UV-vis spectroscopy.Thermal properties of resulting copolymers(10a-c) containing three different second diacid in the main chain were compared by using TGA and DTG thermograms.
In this article, six new optically active copoly (amide-imide) s (10a-f) were synthesized through the direct polycondensation reaction of N-phthalimido- L-aspartic acid (4) with 1,5- diamino naphthalene 3,4-diamino benzophenone (9) in the presence of therphthahc acid (7), fumaric acid (6) and adipic acid (5) as a second diacid in a medium consisting of N-methyl-2-pyrrolidone, calcium chloride and pyridine. The resulting copolymers were fully characterized by means of FT-IR spectroscopy, elemental analyzes, inherent viscosity, solubility tests and UV-vis spectroscopy. Thermo properties of resulting copolymers (10a-c) containing three different second diacid in the main chain were compared by using TGA and DTG thermograms.