Butlerov Chemistry Institute, Kazan Federal University, 420008 Kazan, Russia.
Institute of Physics, Kazan Federal University, 420008 Kazan, Russia.
Int J Mol Sci. 2022 Nov 25;23(23):14764. doi: 10.3390/ijms232314764.
This article shows the success of using the chemical reduction method, the polyol thermolytic process, the sonochemistry method, and the hybrid sonochemistry/polyol process method to design iron-based magnetically active composite nanomaterials in a hyperbranched polyester polyol matrix. Four samples were obtained and characterized by transmission and scanning electron microscopy, infrared spectroscopy and thermogravimetry. In all cases, the hyperbranched polymer is an excellent stabilizer of the iron and iron oxides nanophase. In addition, during the thermolytic process and hybrid method, the branched polyol exhibits the properties of a good reducing agent. The use of various approaches to the synthesis of iron nanoparticles in a branched polyester polyol matrix makes it possible to control the composition, geometry, dispersity, and size of the iron-based nanophase and to create new promising materials with colloidal stability, low hemolytic activity, and good magnetic properties. The NMR relaxation method proved the possibility of using the obtained composites as tomographic probes.
本文展示了使用化学还原法、多元醇热解过程、超声化学法和超声化学/多元醇混合工艺方法在超支化聚酯多元醇基质中设计基于铁的磁性活性复合纳米材料的成功。得到了四个样品,并通过透射电子显微镜、扫描电子显微镜、红外光谱和热重分析对其进行了表征。在所有情况下,超支化聚合物都是铁和氧化铁纳米相的优良稳定剂。此外,在热解过程和混合方法中,支化多元醇表现出良好的还原剂性能。在支化聚酯多元醇基质中采用各种方法合成铁纳米粒子,可以控制铁基纳米相的组成、几何形状、分散性和尺寸,并创造具有胶体稳定性、低溶血活性和良好磁性能的新型有前途的材料。NMR 弛豫法证明了所得到的复合材料可用作层析探针的可能性。
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