PVDF-Fe3O4 nanocomposites: spectroscopic investigations

PVDF-Fe3O4 nanocomposites: spectroscopic investigations
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PVDF-Fe3O4 纳米复合材料:光谱研究

DOI:
10.1007/s10965-022-03045-y
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发表时间:
2022
影响因子:
2.8
通讯作者:
Chipara, Mircea
Chipara, Mircea
中科院分区:
化学3区
文献类型:
--
作者:
Chipara, Dorina M.;Trevino, Alexandro;Lozano, Karen;Hoke, Bryan;Martirosyan, Karen S.;Chipara, Mircea

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纳米复合材料已制备通过熔融混合,加载聚偏氟乙烯基体与各种浓度的磁铁矿。广角X-射线散射,拉曼,傅里叶变换红外光谱和电子顺磁共振光谱被用来研究这些纳米复合材料。广角X-射线散射表明,α是聚合物基体的主要结晶相,与磁铁矿的负载无关。本文报道了用广角X射线散射研究谱线的位置和宽度与磁铁矿含量的关系。拉曼光谱和傅里叶变换红外光谱证实了所制备的纳米复合材料由α-聚偏氟乙烯组成。确定了主要的拉曼谱线,并报道了它们的参数(谱线位置和宽度)对磁铁矿负载的依赖性。拉曼和广角X-射线散射数据证明了基质和纳米填料之间的强相互作用。这些纳米复合材料的电子顺磁共振谱反映了纳米填料的电子之间的强各向异性电子相互作用。
Nanocomposites have been prepared by melt mixing, loading the polyvinylidene fluoride matrix with various concentrations of magnetite. Wide Angle X-Ray Scattering, Raman, Fourier Transform Infrared, and Electron Paramagnetic Resonance spectroscopy were used to investigate these nanocomposites. Wide Angle X-Ray Scattering revealed that α is the dominant crystalline phase of the polymeric matrix irrespective of the loading with magnetite. Wide Angle X-Ray Scattering investigations on the dependence of the line positions and widths on the loading with magnetite are reported. Raman and Fourier Transform Infrared spectroscopy confirmed that the as-obtained nanocomposites consist of α polyvinylidene fluoride. The main Raman lines were identified, and the dependence of their parameters (line position and widths) on the loading by magnetite was reported. Raman and Wide Angle X-Ray Scattering data demonstrated a strong interaction between the matrix and the nanofiller. Electron Paramagnetic Resonance spectra of these nanocomposites reflect strong anisotropic electron interactions among the nanofiller’s electrons.
苯乙烯-丁二烯-苯乙烯钡铁氧体纳米复合材料的铁磁共振研究。
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