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Title | Nanocomposites Based on an Algerian Bentonite and Poly(Methyl Methacrylate-CO-4-Vinilpyridine) Initiated by Ni(II) -Benzoinoxime Complex |
Authors |
Djadoun, A.
Ouaad, K. Djadoun, S. |
ORCID | |
Keywords |
Poly (Methyl Methacrylate-co-4-Vinylpyridine) Hexadecylammonium Chloride Intercalated Partially Exfoliated Nanocomposite Maghnia Bentonite Thermal Degradation |
Type | Conference Papers |
Date of Issue | 2012 |
URI | http://essuir.sumdu.edu.ua/handle/123456789/35103 |
Publisher | Sumy State University |
License | |
Citation | Djadoun, A. Nanocomposites Based on an Algerian Bentonite and Poly(Methyl Methacrylate-CO-4-Vinilpyridine) Initiated by Ni(II) -Benzoinoxime Complex / A. Djadoun, K. Ouaad, S. Djadoun // Nanomaterials: Applications & Properties (NAP-2012) : 2-nd International conference, Alushta, the Crimea, September 17-22, 2012 / Edited by: A. Pogrebnjak. - Sumy : Sumy State University, 2012. - V. 1, No3. - 03CNN13 |
Abstract |
Poly(methyl methacrylate-co-4-vinylpyridine) containing various 4-vinylpyridine contents (PMM4VP)
were synthesized in dioxan at room temperature using a neutral Ni(II)α-benzoinoxime complex as a single
component initiator and used to elaborate via solution intercalation method nanocomposites based on an
organically modified bentonite from Maghnia Algeria (OBT).
Mixed exfoliated and intercalated PMM4VP/OBT nanocomposites were elaborated as confirmed by XRay
Diffraction (XRD) and Transmission Electron Microscopy (TEM) investigations. The degree of
exfoliation of these nanocomposites depended on both the OBT loading and the content of 4-vinylpyridine
within the polymer matrix. Higher degree of OBT dispersion was obtained with nanocomposites based on
PMM4VP19 containing 19 mol of 4-vinylpyridine in presence of 2 of OBT. Differential Scanning
Calorimetry analysis showed an increase of about 20 C in their glass transition temperatures compared to
their virgin copolymers. Moreover, these nanocomposites exhibited a significant improvement of their
thermal stability
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