Abstract
AbstractPoly(vinylidene fluoride) (PVDF) films filled with BiCl3 in the mass fraction range of 0.1 ≤ W ≤ 10 were prepared. α‐ and β‐Crystalline PVDF phases were detected and characterized by spectroscopic analysis. Fourier transform infrared analysis detected the presence of α‐ and β‐phase head‐to‐head and tail‐to‐tail polymer chain defects. The band detected at 1670 cm−1 was assigned to CC, indicating polarons in the polymeric matrix. The degree of crystallinity increased by increasing the filling level (FL), and the maximum relative β‐phase content was found at w = 5% FL. This result was confirmed by X‐ray diffraction (XRD) and differential scanning calorimetry (DSC) analysis. The X‐ray analysis confirmed the presence of α and β phases, and no peaks corresponding to pure BiCl3 were found. DSC therograms showed a sharp endothermic peak at T1 = 444 K for different FLs because of the melting. This peak was used to calculate the activation energy and the order of the reaction. The DC electrical resistivity was attributed to the one‐dimensional interpolaron hopping mechanism. The FL dependence of log ρ and hopping distance (Ro) at 373 K was observed, indicating the FL affected the distribution of the hopping sites. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 2125–2131, 2006
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