Poly(isothianaphthene methine)s with liquid crystalline substituents

摘要

The synthesis of poly(isothianaphthene methine) has been further explored by introducing substituents possessing a liquid crystalline group, such as phenylcyclohexyl, phenylpyrimidine or biphenyl. The polymers are characterized by IR, UV-Vis-NIR, ~1H- and ~(13)C-NMR spectroscopy. All polymers are soluble in common organic solvents. They show bandgaps between 1.2 and 1.3 eV and electrical conductivities in the range of 10~(-4) -10~(-5) S/cm upon iodine vapor doping.