Macromolecules, Vol.33, No.6, 2124-2128, 2000
Rigid-rod complex of a cationic poly(p-phenylene) and a fluorinated amphiphile
The complexation of a cationic poly(p-phenylene) with tetraethylammonium perfluoro-1-octanesulfonate results in a highly fluorescent polymeric complex which forms cylindrical aggregates in solution and a columnar mesomorphous structure in the solid stale. Two columns per unit cell are arranged in a rectangular two-dimensional lattice with lattice constants of 5.2 and 3.3 nm. A remarkably large phase width which varies from -50 to 300 degrees C, as determined by small-angle X-ray scattering and differential calorimetry, was found. The optical properties of the complex in solution and in the solid state were investigated using UV-vis and fluorescence spectroscopy.
Keywords:SMALL-ANGLE SCATTERING;SURFACTANT COMPLEXES;LIGHT-SCATTERING;PARA-HEXAPHENYL;POLYMERS;POLYELECTROLYTE;ELECTROLUMINESCENCE;TRANSFORMATION;PARTICLES;OLIGOMERS