01583nas a2200145   4500008004100000022001400041245006100055210006000116260008900176300000800265520102900273100002001302700002401322856009101346       2009                        eng d  a1618-722900aStudy of dielectric behavior in PVDF/clay nanocomposites0 aStudy of dielectric behavior in PVDFclay nanocomposites  a1, QUAI LEZAY-MARNESIA, F067000 STRASBOURG, FRANCEbEUROPEAN POLYMER FEDERATIONcSEP  a1123 a<p>A high dielectric permittivity nanocomposite based on poly( vinylidene fluoride) (PVDF) and organically modified clay is reported. The present work aims to study the effect of clay on dielectric behavior of PVDF. The dielectric permittivity study shows a remarkable enhancement in the permittivity of nanocomposites in the low frequency region. The obtained permittivity values fits quite well to the prediction of dielectric permittivity from Vo-Shi model, which takes contribution of interface to permittivity into account. This enhanced permittivity in nanocomposites is attributed to the presence of interfacial polarization. The interface effect is further studied with cole-cole plot analysis. The dielectric loss study of pristine PVDF shows two relaxations associated with segmental (glass transition relaxation) and crystalline chain relaxation. However in the PVDF/Clay nanocomposites crystalline relaxation peak disappears which is attributed to the formation of the beta phase in PVDF/clay nanocomposites.</p>1 aChanmal, Chetan1 aJog, Jyoti, Prakash  uhttps://library.ncl.res.in/content/study-dielectric-behavior-pvdfclay-nanocomposites-0