多関節高分子の設計・合成とその特異な自己組織化

抄録

We have synthesized multi-joint polymers composed of oligothiophene as a semiconducting arm and ferrocene as a free rotation joint. These polymers displayed a spectral red shift in electronic absorption spectra compared to the case in its reference compound, without considerable concentration effects on the spectral shift in a series of compounds. This observation indicates that an isolated polymer chain forms the folding conformation driven by the intrapolymer pi-stacking and rotational motion around the ferrocene units. In the solid state, these polymers self-assembled to form 2D sheets by intrapolymer pi-pi interactions and interdigitation of alkyl chains.