| 초록 |
The successful discrimination between Geomarical isomer is one of the most challenging tasks faced by the chemosensing research community. A series of interrelated water-soluble polymeric probes (P1, P2, and P3), comprising various pendent –R groups (i.e., aldehydes, thiazolidines, and nitriles) and including an azo chromophore, were designed and synthesized P1 afforded the selective colorimetric detection of maleic acid over other carboxylic acids and the efficient discrimination between maleic acid and fumaric acid. A probe appended with P2 afforded the selective detection of maleic acid and fumaric acid over other carboxylic acids, but it did not allow to discriminate between these two acids. Finally, P3 did not allow to detect any of the tested carboxylic acids. The detection and discrimination processes were significantly influenced by the relative magnitude of the acid dissociation constants of the probes versus those of the target carboxylic acids. |
