Effect of PANI rate percentage on morphology, structure and charge transport mechanism in PANI–PVDF composites above percolation threshold

Stretchable Electrospun PVDF-HFP/Co-ZnO Nanofibers as Piezoelectric Nanogenerators

“…4 . The observed diffraction peaks correspond to the semicrystalline PVDF 19 – 21 . The crystalline α, β and γ phases of PVDF-HFP were well- fitted with a Gaussian function for all the samples and the electroactive polarized α, β and γ phases were calculated from the de convoluted peaks.…”

The effect of compressive stress on the electrically resistivity of poly(vinylidene fluoride)/polypyrrole blends

“…Nevertheless, the absorption band at 1520 cm −1 for pure PPy are blue-shifted to 1540 cm −1 (dashed lines) for blends prepared with 13 and 23 wt% of PPy. The observed absorption band shift can be attributed to the dipole/dipole secondary interaction between C F group of PVDF and N H group of PPy [35]. These dipole or Van der Waals interactions can affect the stability of the polymers and blend compatibility [35], supporting the idea that the PPy pathway formation into PVDF matrix at very low percolation threshold could be attributed to the chemical interaction of both components.…”

Poly(vinylidene fluoride-co-hexafluoropropylene)/polyaniline blends assisted by phosphonium – Based ionic liquid: Dielectric properties and β-phase formation

“…The addition of 10 wt% of PAni.DBSA does not exert influence on the XRD profile of the material. However, when 20 wt% and 30 wt% of PAni.DBSA are present, the crystallinity decreases because of the decreasing in the PVDFco-HFP portion in the blend and it is possible to observe the appearance of a new and broad peak at 2 = 20.4 -20.6° which corresponds to the β-crystalline phase, according to the literature[43]. This behavior indicates the importance of the PAni.DBSA on the development of the β-phase in the PVDF-co-HFP matrix.…”