Abstract
X-ray diffraction studies carried out for regioregular poly(3-octylthiophene) and poly(3-hexylthiophene) are presented. The diffraction data are supported by computer modelling of the structure. The comparison of the results obtained in this work with the results reported for the ‘common’, non-regioregular poly(3-alkylthiophenes) gives evidence of better chain planarity and higher crystallinity of the regioregular polymers. In addition, structural aspects of poly(3-alkylthiophenes) doped with FeCl 4 − are investigated.
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