Journal
JOURNAL OF CHEMICAL SCIENCES
Volume 127, Issue 3, Pages 519-525Publisher
INDIAN ACAD SCIENCES
DOI: 10.1007/s12039-015-0804-3
Keywords
Modified layered double hydroxides; nanocomposite; thermal stability; poly(vinyl alcohol)
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Funding
- Research Affairs Division of Isfahan University of Technology (IUT)
- National Elite Foundation (NEF)
- Center of Excellence in Sensors and Green Chemistry Research (IUT)
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In this study, modified LDH (M-LDH) was synthesized by the co-precipitation reaction of Al(NO3)(3)center dot 9H(2)O, Mg(NO3)(2)center dot 6H(2)O and N-tetrabromophthaloyl-glutamic (Br-Gl) in short time. M-LDH nanofillers were embedded into poly(vinyl alcohol) (PVA) matrix via ultrasonic irradiation technique which provided PVA/M-LDH NCs. The morphology and structure of the prepared samples were characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis (TGA), field emission scanning electron microscopy and X-ray diffraction techniques TGA of the PVA/M-LDH NCs showed that the thermal stability was improved. The enhancement of thermal properties was ascribed to the homogeneous and good dispersion of M-LDH sheets in the PVA matrix by hydrogen bonding between O-H groups of PVA and the M-LDH.
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