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Structural investigations of thermally processable, conductive polyaniline (PANI) are presented. Free standing, compact films of conductive polyaniline were prepared by hot pressing of polyemeraldine previously protonated with diphenyl hydrogen phosphate (DPHP) in chlorobenzene. The samples were then subjected to wide-angle X-ray diffraction (WAXD) and small angle synchrotron radiation scattering...
A possible structural model for the mesomorphic form of syndiotactic poly(p-methylstyrene) is discussed. The structural analysis is performed through the comparison between the experimental X-ray diffraction intensities and the calculated intensities for model structures constituted by ordered and disordered aggregates of chains. This analysis provides support for the hypothesis that the mesomorphic...
The structure of freeze-dried atactic polystyrene (a-PS) prepared from dilute benzene and cyclohexane solutions was examined by using Fourier transform infra-red spectroscopy, wide-angle X-ray scattering and differential scanning calorimetry (d.s.c.). The phenyl-phenyl correlation in the freeze-dried a-PS is weak compared with that in the reference sample cast from a 5 wt% solution in tetrahydrofuran...
Polyphenylsilane, (HSiC 6 H 5 ) n , was synthesised by catalytic coupling of phenylsilane using Cp2ZrCl22BuLi as a catalyst. Chlorination of the resulting polymer with tetrachloromethane (CCl 4 ) gave polychlorophenylsilane, (ClSiC 6 H 5 ) n , subsequent substitution of chloride by dimethylamine yielded polydimethylaminophenylsilane, ((CH ...
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