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Nanocomposites Based on an Algerian Bentonite and Poly(Methyl Methacrylate-CO-4-Vinilpyridine) Initiated by Ni(II) -Benzoinoxime Complex

Electronic Archive of Sumy State University

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Title Nanocomposites Based on an Algerian Bentonite and Poly(Methyl Methacrylate-CO-4-Vinilpyridine) Initiated by Ni(II) -Benzoinoxime Complex
 
Creator Djadoun, A.
Ouaad, K.
Djadoun, S.
 
Subject Poly (Methyl Methacrylate-co-4-Vinylpyridine)
Hexadecylammonium Chloride
Intercalated
Partially Exfoliated Nanocomposite
Maghnia Bentonite
Thermal Degradation
 
Description 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
 
Publisher Sumy State University
 
Date 2014-05-27T07:21:48Z
2014-05-27T07:21:48Z
2012
 
Type Article
 
Identifier 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
http://essuir.sumdu.edu.ua/handle/123456789/35103
 
Language en