| 초록 |
Polymeric probe with dithioacetal units in the hydrophobic segment of micelle were designed and synthesized for the controlled condition and selective colorimetric sensing of Hg2+ ion in aqueous solutions. These polymeric colorimetric sensors were prepared by a reaction between aldehyde groups of the hydrophobic segment in micelle and ethanethiol using BF3. In aqueous solution, they existed a micellization. The key to designing polymeric probe is to construct chromophore and light responsive characteristics of hydrophobic segments. Sensing is not possible in case of micelle type, however the UV-range wavelength (365nm) exposed, change in the hydrophilicity the micelle is swelling and selective Hg2+ sensing is possible. These polymeric sensor changes color the solution, from pale yellow to dark red. The sensors have selectivity toward Hg2+ ions over other alkali and transition metal ions. |
