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Title
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Effect of Fe3+–MMT nanocomposite content on thermal, mechanical and water resistance behavior of PVP/amylose films
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Type
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JournalPaper
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Keywords
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Amylose · PVP · PVP/AM film · Fe3+–MMT nanocomposite · Thermal stability · Glass transition temperature (Tg)
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Abstract
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Novel nanocomposite films based on amylose (AM) and Fe3+–montmorillonite (Fe3+–MMT) in the matrix of poly(vinyl pyrrolidone) (PVP) were fabricated using a solution casting method. X-ray diffraction indicated that an ion exchange process occurred between Fe3+–MMT and PVP/AM. Thermogravimetric analysis and differential scanning calorimetry results hinted to PVP/AM films forming a more stable network through the dispersion of Fe3+ cations. An increase in the loading of Fe3+–MMT improved the hydrophilic properties of PVP/AM films, which lead to the high degree of resistance against the water absorption. Mechanical properties of PVP/AM films influenced by the uniform dispersion of Fe3+–MMT in the polymer network established strong covalent interactions between PVP/AM and Fe3+–MMT. This interaction not only improved the mechanical properties of the films, but also enhanced the thermal stability of them through the facilitation of the MMT dispersion within the polymer matrix.
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Researchers
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Fedor I. Zubkov (Not In First Six Researchers), Payam Hayati (Not In First Six Researchers), Ghodrat Mahmoudi (Fifth Researcher), Ali Akbar Khandar (Fourth Researcher), Farhad Akbari Afkhami (Third Researcher), Naser Sadeghpour Orang (Second Researcher), Reza Abdollahi (First Researcher)
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