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Information × Registration Number 2112U001319, Article popup.category Thesis Title popup.author popup.publication 01-01-2012 popup.source_user Сумський державний університет popup.source http://essuir.sumdu.edu.ua/handle/123456789/35103 popup.publisher Sumy State University 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 When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35103 popup.nrat_date 2025-05-12 Close