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Author Jayaraman, R. ♦ Vickraman, P. ♦ Subramanian, N. M. V. ♦ Justin, A. Simon
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ ACRYLATES ♦ CALORIMETRY ♦ CARBONATES ♦ CARBONYLS ♦ FOURIER TRANSFORMATION ♦ IMPEDANCE ♦ INFRARED SPECTRA ♦ INTERACTIONS ♦ IONIC CONDUCTIVITY ♦ LEAD COMPOUNDS ♦ ORGANIC FLUORINE COMPOUNDS ♦ PLASTICIZERS ♦ POLYVINYLS ♦ RECRYSTALLIZATION ♦ TEMPERATURE DEPENDENCE ♦ TITANATES ♦ VIBRATIONAL STATES ♦ X-RAY DIFFRACTION
Abstract Impedance, XRD, DSC and FTIR studies had been carried out for PVdF-co-HFP/LIBETI based system for three plasticizer (EC/DMC) – filler (PbTiO3) weight ratios. The enhanced conductivity 4.18 × 10{sup −5} Scm{sup −1} was noted for 57.5 wt% −7.5 wt% plasticizer – filler. while blending PEMA to PVdF-co-HFP respectively 7.5: 22.5 wt % (3/7), 15 wt%: 15 wt % (5/5) and 22.5wt %: 7.5 wt % (7/3), the improved conductivity was noted for 3/7 ratio 1.22 × 10{sup −5} S cm{sup −1} and its temperature dependence abide Arrhenius behavior. The intensity of peaks in XRD diffractogram registered dominance of lead titanate, from 2θ = 10° to 80° and absence of VdF crystallites (α+β phase) was noted. In DSC studies, the presence of the exotherm events, filler effect was distinctively seen exhibiting recrystallization of VdF crystallites. In blending PEMA, however, no trace of exotherms was found suggestive of PEMA better inhibiting recrystallization. FTIR study confirmed molecular interactions of various constituents in the vibrational band 500 – 1000 cm{sup −1} both in pristine PVdF-co-HFP and PEMA blended composites with reference to C-F stretching, C-H stretching and C=O carbonyl bands.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-05-23
Publisher Place United States
Volume Number 1731
Issue Number 1


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