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Polyvinylalcohol (PVA) films, filled with mass fractions % of , were prepared. The x-ray diffraction spectra indicated the partial crystallinity of PVA, which decays as w increases. The infrared analysis implied that the degree of syndiotacticity depends, nonmonotonically, on w. The observed peak at 520 nm, in the ultraviolet-visible spectra, revealed (i) the transition . (ii) the octahedral coordination of , (iii) the trapped electrons of the OH group of PVA and (iv) the spin-cluster excitation. The dependence on the temperature T of the dc electrical conduction was attributed to phonon-assisted interpolaron one-dimensional (1D) hopping of charge carriers. The temperature dependence of the dc magnetic susceptibility fits the 1D Ising antiferromagnetic equation well. The obtained electron spin resonance spectra exhibit the main features of the spectrum of the unfilled PVA. The dependence on the filling level of the logarithm of the calculated average rotational correlation frequency of mobile spins was compared with the corresponding dependences of the Ising coupling factor and the degree of syndiotacticity. The spin configuration of the present system was discussed in detail; it differs from the spin configuration of the -filled PVA films. The 1% -filled PVA film is the most suitable for its response to electromagnetic waves.

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Polyvinylchloride (PVC) films containing different amounts of NiCl2 have been prepared using a casting method. The UV/VIS (200-800 nm) and IR (200-4000 cm−1) spectra and dc electric conductivity have been investigated. One optical absorption edge was found for pure PVC, while the addition of NiCl2 led to the appearance of a second edge at lower photon energy. The change of the calculated values of the optical energy gaps with increasing NiCl2 content has been interpreted in terms of the structural modifications of the PVC matrix. The spectral analysis indicated that the Ni+2 ions are present in its octahedral symmetrical forms. The infrared analysis revealed that there is a change of the NiCl2 chliation mode beyond 0.25 filling level. The electric conduction was attributed to an intrachain one dimensional interpolaron hopping mechanism. The calculated hopping distance was R0 ⩾ five monomer unit lengths. R0 depends linearly on both temperature and filling level.

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