2b05 Synthesis and characterization of liquid crystalline oligothiophenes bearing oligosiloxane chains

Abstract

We synthesized oligothiophene derivatives bearing oligosiloxane chains at the ends of the alkyl chains. Diphenylterthiophene derivatives having disiloxane chains exhibits high solubility in organic solvents because of the thermal movement of the oligosiloxane chains. On cooling, fibrous structures were formed based on nanosegregation between rigid π-conjugated moieties and flexible oligosiloxane chains. We will also report carrier transport characteristics of the materials.