Magnetic cellulosic materials based on TEMPO-oxidized viscose fibers

作者: Gabriela Biliuta , Sergiu Coseri

DOI: 10.1007/S10570-016-1082-Z

关键词: ViscoseChemical engineeringMaterials scienceCellulose fiberThermal stabilityInfrared spectroscopyMagnetic nanoparticlesThermogravimetric analysisComposite materialCelluloseScanning electron microscope

摘要: A simple method for preparation of magnetic cellulose fibers by coating (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO)-oxidized viscose with oleic-acid-coated or uncoated, freshly prepared nanoparticles (MNp) is presented. MNp attachment was facilitated chemical activation the through introduction negatively charged carboxylic groups using well-established TEMPO-mediated oxidation protocol. The resulting composite materials preserved intrinsic properties fibers, but gained notable specific features due to presence nanoparticles. obtained were characterized spectral (Fourier-transform infrared spectroscopy) and microscopic (scanning electron microscopy) methods. Thermogravimetric analyses carried out evaluate thermal stability fibers. evaluated vibrating-sample magnetometry.

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