Optical sensing of metal ions by using polyamide containing azo moieties
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- Optical sensing of metal ions by using polyamide containing azo moieties
- Lee, TS; Yang, Changduk
- Congo Red-based polymer; optical sensing; self-assembled multilayer
- Issue Date
- ELSEVIER SCIENCE SA
- SYNTHETIC METALS, v.117, no.1-3, pp.135 - 136
- Congo Red-based polyamide was prepared by condensation polymerization reaction between Congo Red and sebacoyl chloride and its metal ion-responsive properties were investigated by UV-VIS spectroscopy. The absorption spectra showed cation-selective spectral intensity changes in the presence of specific metal ions in aqueous media due to cation complexing. Self-assembled multilayer film was prepared by means of layer-by-layer deposition technique with polyanion (Congo Red-based polymer) and polycation (poly(diallyldimethyl ammonium chloride)).
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