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FT‐IR and Isotherm Study on Anion Adsorption onto Novel Chelating Fibers |
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| Authors: | Young Gun Ko Ung Su Choi Tai Young Kim Dong June Ahn Yong Jin Chun |
| Abstract: | A new chelating fiber, poly(acrylo‐amidino diethylenediamine), was synthesized based on polyacrylonitrile fibers in diethylenetriamine with the aid of AlCl3. Complex formation with CrO42– was strongly pH‐dependent, as complexes formed only in the presence of NH3+ and NH2+. In the medium pH region, both ionic and hydrogen bonds were formed between poly(acrylo‐amidino diethylenediamine) and the chromate ion, as was confirmed by means of FT‐IR spectroscopy. |
| Keywords: | chelating fiber FT‐IR ion exchangers pH selectivity polymer/chromate ion complex |