초록 |
A series of amphiphililc oligothiophenes was synthesized by the Suzuki and Stille coupling reactions. The amphiphilic nature of these compounds was conferred by the substitution of a dodecyl- and a poly(ethylene oxide) unit at the α,α’-positions of the oligothiophene unit. 1H NMR, GC-MS, X-ray scattering and DSC were used to confirm the molecular structures of these compounds. Due to the amphiphilic nature of these compounds, they were self-assembled in selective solvents. Their self-assembling structure varied depending on the type of solvent. Various surface morphologies were found from their thin films prepared on mica by either spin-coating or dip-coating method. |