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    Öğe
    Poly(cyclohexene oxide)/Clay Nanocomposites by Photoinitiated Cationic Polymerization via Activated Monomer Mechanism
    (Wiley, 2009) Oral, Ayhan; Tasdelen, Mehmet Atilla; Demirel, Adem Levent; Yagci, Yusuf
    Poly(cyclohexene oxide) (PCHO)/clay nanocomposites were prepared by in situ photoinitiated activated monomer cationic polymerization. The polymerization of cyclohexene oxide through the interlayer galleries of the clay can provide distribution of the clay layers in the polymer matrix homogenously and results in the formation of PCHO/clay nanocomposites. The exfoliated structures were characterized by X-ray diffraction spectroscopy, thermogravimetric analysis, transmission electron microscopy, and atomic force microscopy. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 5328-5335, 2009
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    Öğe
    Poly(methyl methacrylate)/clay nanocomposites by photoinitiated free radical polymerization using intercalated monomer
    (Elsevier Sci Ltd, 2009) Oral, Ayhan; Tasdelen, Mehmet Atilla; Demirel, Adem Levent; Yagci, Yusuf
    A series of poly(methyl methacrylate)/montmorillonite (PMMA/MMT) nanocomposite were prepared by Successfully dispersing the inorganic nanolayers of MMT clay in an organic PMMA matrix via in situ photoinitiated free radical polymerization. Methyl methacrylate monomer was first intercalated into the interlayer regions of organophilic clay hosts by click chemistry followed by a typical photoinitiated free radical polymerization. The intercalated monomer was characterized by FT-IR spectroscopy, elemental analysis and thermogravimetric analysis methods. The intercalation ability of the modified monomer and exfoliated nanocomposite structure were confirmed by X-ray diffraction spectroscopy (XRD), transmission electron microscopy (TEM) and atomic force microscopy (AFM). Thermal stability of PMMA/MMT nanocomposites was also studied by both differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). (c) 2009 Elsevier Ltd. All rights reserved.