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http://nopr.niscpr.res.in/handle/123456789/21293| Title: | Polarization absorption currents in poly(vinyledene fluoride) : poly(methyl methacrylate) blend system |
| Authors: | Garg, A K Keller, J M Datt, S C Chand, Navin |
| Issue Date: | Feb-2000 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The blend system of semi-crystalline poly(vinyledene fluoride) (PVDF) with amorphous poly(methylmethacrylate) (PMMA) has been investigated in detail for understanding transient absorption current behaviour. Bilaterally aluminized solvent cast blend samples of various PVDF:PMMA compositions (100:00,90: 10, 80:20,70:30 wt%) were thermally charged with field ranging from 50 to 125 kV/cm at different temperatures (50-110°C). The observed time, poling temperature, poling field, and wt% blending composition dependence suggest that the transient behaviour is mainly governed by dipolar motion in the bulk samples. Further, in view of the semi-crystalline character of PVDF and the heterogeneous nature of blends, a definite contribution to such currents from charges hopping amongst the localized states, space charges and interfacial effects cannot be ruled out. |
| Page(s): | 40-46 |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Appears in Collections: | IJEMS Vol.07(1) [February 2000] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJEMS 7(1) 40-46.pdf | 1.47 MB | Adobe PDF | View/Open |
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