POLY(3,6-CARBAZOLYLMETHYLENE)S WITH FLUORINATED AND NONFLUORINATED TAPERED BUILDING SIDE-GROUPS

The syntheses of two different poly(3,6-carbazolylmethylene)s are desc ribed. The polycondensation reaction proceeds without any crosslinking and the obtained polymers were characterised by elemental analysis H- 1-NMR, C-13-NMR and P-19-NMR DSC studies evidenced that one of the obt ained polymers, i.e. s(4-perflouro-octylbutyl-1-yloxy)benzyl)carbazole ] shows liquid crystalline behaviour and X-ray analysis pointed to a h exagonal columnar mesophase.