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MADAKBAŞ, SEYFULLAH

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Author: ÇAKMAKÇI, EMRAH × Subject: POLYMERIZATION ×

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    Preparation, characterisation, and dielectric properties of polypyrrole-clay composites
    (SPRINGER INTERNATIONAL PUBLISHING AG, 2013) ÇAKMAKÇI, EMRAH; Madakbas, Seyfullah; Cakmakci, Emrah; Kahraman, Memet Vezir; Esmer, Kadir
    In this study, polypyrrole-clay (PPy-clay) composites were prepared by the in situ chemical oxidative polymerisation of pyrrole in the presence of clay. The chemical structures of the composites were characterised by FTIR and XRD analysis. The thermal properties of these novel composites were analysed by TGA and DSC measurements. Glass-transition temperatures and char yields increased with the increase in clay content in the nanocomposites. The interactions between PPy and clay were mainly between polypyrrole and the layers of clay. It was observed that, as the amount of clay in the composites increased, the dielectric permittivity decreased while the dielectric conductivity of the composite materials increased.
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    Preparation and Characterization of Polyaniline/Hexagonal Boron Nitride Composites
    (WALTER DE GRUYTER GMBH, 2013) ÇAKMAKÇI, EMRAH; Cakmakci, Emrah; Madakbas, Seyfullah
    Polyaniline (PANI) is one of the most studied conductive polymer with several unique properties and good conductivity. In this study it was aimed to prepare Polyaniline (PANI)/Hexagonal boron nitride (h-BN) composites. Chemical structures of the composites were characterized by FTIR analysis. Thermal properties of these novel composites were analyzed by TGA and DSC measurements. Glass transition temperatures and char yields of the composites increased with increasing h-BN percentage. FTIR, XRD and UV measurements indicated that the boron atoms in h-BN particles interact with the unpaired electrons in nitrogen atoms of PANI. Dielectric measurements revealed dipolar polarization behavior of the composites.