Self-Assembly, Polymerization and Colorimetric Properties of a Barbituric Acid-Derived Diacetylene
발표자
()
초록
내용
Barbituric acids (BAs) are highly adaptable ligands and fundamental components in the fields of coordination chemistry and supramolecular chemistry. In this study, we synthesized a barbituric acid-containing diacetylene PCDA-BA. PCDA-BA was self-assembled into nanotube structures under the conditions of a mixture of THF and ethanol. UV irradiation to the PCDA-BA nanotube suspension afforded formation of blue colored polydiacetylene (PDA) nanotubes, which was confirmed by spectroscopic (UV-visible absorption and Raman) and microscopic (SEM and TEM) methods. SEM analysis suggested that the self-assembly of PCDA-BA formed plate-like structures from extensive intermolecular hydrogen bonds from the barbituric acid moieties and the plates rolled up to the nanotubular structures. The blue PCDA-BA nanotubes displayed colorimetric transition in response to heat, solvent and hydrazine.