| 초록 |
An amphiphilic tetrathiafulvalene molecule (amph-7TTF14) was newly designed and synthesized. The morphological observations using transmission electron microscopy, atomic force microscopy, and polarized optical microscopy indicated that the amph-7TTF14 formed not only flat ribbons but also scrolls and helices. The face-to-face π-π interaction between TTF groups and the nanophase separation between rigid TTF groups and flexible hydrophobic alkyl and hydrophilic ethylene oxide tails were the main driving forces for the self-assembly of amph-7TTF14. Based on the experimental results, it was realized that the scrolls and helices were induced by the unbalanced surface stresses generated during the crystallization process. This work was mainly supported by the Human Resource Training Project for Regional Innovation and the Converging Research Center Program (2012K001428) of Korean government. |
