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Based on the polycondensation of bifunctional 2,2′-diamino-4,4′-bithiazole(DABT) and trifunctional 1,3,5-benzenetricarbonyl trichloride (BTC),a novel hyperbranched aromatic polyamide PBD was synthesized with excellent solubility and good thermal stability.The structure of the polymer was confirmed by FT-IR and 1H NMR spectrum.The calculated degree of branching of our product was 52%.By exploring the influence of several different solvent systems,the yield of the polymer increased in the solvent system of DMAc/LiCl.Two kinds of metal complexes were obtained by chelation of the polyamide with Cu2+ and Ni2+,and the metal contents of the complexes were determined by complexometric titration.The magnetic behaviors of the complexes were examined as a function of magnetic field strength at 5 K,and as a function of temperature (5–300 K) at a magnetic field strength of 2.4 × 106 A/m.The results indicated that the complexes were soft ferromagnetic materials with Curie-Weiss temperature at 102 K and 53 K,respectively.
Based on the polycondensation of bifunctional 2,2’-diamino-4,4’-bithiazole (DABT) and trifunctional 1,3,5-benzenetricarbonyl trichloride (BTC), a novel hyperbranched aromatic polyamide PBD was synthesized with excellent solubility and good thermal stability. The structure of the polymer was confirmed by FT-IR and 1H NMR spectrum. The calculated degree of branching of our product was 52%. By exploring the influence of several different solvent systems, the yield of the polymer increased in the solvent system of DMAc / LiCl.Two kinds of metal complexes were obtained by chelation of the polyamide with Cu2 + and Ni2 +, and the metal contents of the complexes were determined by complexometric titration. The magnetic behaviors of the complexes were examined as a function of magnetic field strength at 5 K, and as a function of temperature (5-300 K) at a magnetic field strength of 2.4 × 10 6 A / m. The results indicated that the complexes were soft ferromagnetic materials with Curie-Weiss temperature at 102 K and 53 K, respectively.