关键词: 双噻唑, 二茂铁, 聚合席夫碱, 金属配合物, 性能

Abstract: A new poly(Schiff-base) containing ferrocene and bithiazole groups was synthesized, and characterized with FT-IR and 1H-NMR techniques. The effects of temperature, time and catalyst of reaction on its yield were investigated. The maximum yield of ferrocene Schiff-base was obtained as 87.2% under the conditions of 80℃ temperature and 6 h reaction time, and the maximum yield of poly(Schiff-base) was 72.4% with the catalyst of AlCl3. The thermogravimetric measurements suggested that the polymer had good thermal stability. At room temperature, the electrical conductivity and magnetic behaviors of the polymer and its complex were measured. The electrical conductivity of complex was declined when coordinated with Fe2+ metal salt, but through iodine doping, the electrical conductivity of poly(Schiff-base) was improved and the maximum room-temperature conductivity could reach 2.14×10-3 S/cm for poly(Schiff-base)-I2, meanwhile, the complex exhibited a typical "S" shape hysteresis cycle, the observed coercive field was 130 Oe, and the relative saturation magnetization and remnant magnetization 0.612 and 0.0257 emu/g for the complex, respectively. The result shows that the complex is a soft organic ferromagnetic material.

Key words: bithiazole, ferrocene, poly(Schiff-base), metal complex, property