| 초록 |
Long chain-substituted adenine and thymine have been synthesized and their self-assembly behavior is investigated in various solvent media. The effect of Van der Walls force via alkyl chains and complementary hydrogen bonding between adenine and thymine, results in interesting morphologies in solution. The interaction of these forces are solvent dependent hence we investigated effect of solvent for anisotropic morphologies. The 0.05 wt% mixture of adenine and thymine derivatives in THF/methanol self-assemble into micro-rods with the average length ~ 300 nm. Further we found these assemblies are concentration dependent and with increasing concentration well-defined spherical morphologies of microscale (2-3 μm) size was formed. Interestingly, these assemblies depend proportion of solvent-non-solvent, a nanorods obtained in THF/water (1/1 v/v), with water proportion above (1/1 v/v) the nanofibers grow in thickness. |
