论文部分内容阅读
二乙酰二茂铁苯二甲酰腙聚合物在DMSO中与氯化锰反应合成二乙酰二茂铁二甲酰腙-Mn配位聚合物(PFZMn),高温(400、600及1200℃)热解制得MnFe2O4.Fe3O4固溶体;采用XRD、TEM、超导量子强磁计(SQUID),高频、微波下(0.1～1.8GHz)对固溶体进行表征。结果表明1200℃热解所得的固溶体为纳米强磁体,它在5及300K的饱和磁化强度(Ms)、剩磁(Mr)及矫顽力(Hc)分别为62.80及49.30emu/g;5.13及3.15emu/g和305及268Oe。而在0.1～1.8GHz有较高的电磁参数(1GHz时,),及较低的电磁损耗(1GHz下,μr′=6×10-3,εr′=2.5×10-2)。
Diacetylferrocene phthalyl hydrazone polymer is reacted with manganese chloride in DMSO to synthesize diacetyl ferrocene dicarbonyl-Mn coordination polymer (PFZMn), high temperature (400, 600 and 1200 ℃) heat The solid solution of MnFe2O4.Fe3O4 was obtained by sol-gel method. The solid solution was characterized by XRD, TEM, SQUID, high frequency and microwave (0.1 ~ 1.8GHz). The results show that the solid solution obtained by pyrolysis at 1200 ℃ is a nano-sized magnet whose saturation magnetization (Ms), remanence (Mr) and coercive force (Hc) are 62.80 and 49.30emu / g at 5 and 300K respectively; 3.15emu / g and 305 and 268Oe. While higher electromagnetic parameters (at 1GHz) and lower electromagnetic losses (μr ’= 6 × 10-3, εr’ = 2.5 × 10-2 at 1 GHz) are available at 0.1 to 1.8 GHz.