フェロセンを含む液晶性物質の合成と物性(XI) : [4-[ω-(cholesteryloxycarbonyl)hexyloxycarbonyl]phenyl] ferroceneの動的粘弾性に関する研究

抄録

The dynamic viscoelastic properties were studied for the monosubstituted ferrocene derivatives containing cholesteryl group as a mesogenic one, [4-[ω-(cholesteryloxycarbonyl)hexyloxycarbonyl]phenyl]ferrocene, synthesized in our laboratory. In the heating process, an abrupt drop of the storage modulus(G') was not observed around the clearing temperature estimated from DSC. Even in the liquid state above the clearing point, the storage modulus(G') decreased successively with increasing temperature, Such behavior is different from the general behavior of liquid crystals. The viscoelastic results under different heat treatments suggest that the liquid state is not isotropic completely.