Synthesis And Properties Of .2,4 - Diamino - 6 - Phenyl - 3,5 - Triazine Polymer And Chelate

With the advancement of society, development of science and application of high-tech there is need for magnetic materials with the better performance. The organic or polymeric magnetic materials which have a prospect application in many areas such as magnetic-optic materials, novel absorbents of microwave, micromation of electron products, space kinetics systems and universe sail systems have interested more and more scientists and engineers. Compared with inorganic ferromagnet, the organic ferromagnet exhibits the characteristics of structural diversities, low density, and readily processing. The magnetic feature of organic or polymeric ferromagnet can be revealed in the submolecular level. So the synthesis of novel organic magnets was significant in the field of magnetic materials.A serial of bithiazole-containing heteroaromatic poly (schiff base) s and their metal complexes have been synthesized. The previous research showed that these compexes are ferromagnetic materials. In order to find the new organic magnetic materials with the better performance, enrich the organic magnet theories, study the relationship between the structure and property, lay down a basement for the application of these magnetic materials as well, we syntheses two new poly (schiff base) s and their metal complexes. The magnetic property of them have also been measured. The results show: the metal Comdexes of heteroaromatic poly (schiff base) are soft magnets.The material work is followed:Two poly(schiff base)s (PBTAP, PBTMP, PBTPP) and their compexes were synthesized by condensation and condination. The magnetic properties of complexes were measured as well.It was found that the saturation magnetization (Ms) of PBTGZ-Fe2+ and PBTPZ-Fe2+ are 2.6 emu/g and 5.4 emu/g . The remanence magnetization of them are 0.011 emu/g and 0.165 emu/g.and there are magnetic hysteresis loops at low temperature. It is show PBTGZ-Fe2+ and PBTPZ-Fe2* is a soft ferromagnet in low temperature. The value of curie-temperature is negative and means there are some interaction between the unpaired electrons.The polymers and their Fe2+ complexes were characterized through FTIR, NMR and the magnetic properties of complexes were measured through physical property measurement system (PPMS).