US EPA

7145059 

Journal Article 

Lead Titanate/Cyclic Carbonate Dependence on Ionic Conductivity of Ferro/Acrylate Blend Polymer Composites 

Jayaraman, R; Vickraman, P; Subramanian, NMV; Justin, AS; , 

2016 

Yes 

AIP Conference Proceedings
ISSN: 0094-243X
EISSN: 1551-7616 

AMER INST PHYSICS 

MELVILLE 

AIP Conference Proceedings 

1731 

10.1063/1.4948194 

WOS:000380371600590 

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 4.18X10(-5) Scm(-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 1.22X10(-5) S cm(-1) and its temperature dependence abide Arrhenius behavior. The intensity of peaks in XRD diffractogram registered dominance of lead titanate, from 2 theta = 10 degrees to 80 degrees and absence of VdF crystallites (alpha+beta 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(-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. 

PVDF/PEMA blend; DSC; AC Impedance; XRD; FTIR 

Chitra, R; Bhattacharya, S; Sahoo, NK; 

DAE Solid State Physics Symposium 

Noida, INDIA