Ft-Ir and Isotherm Study on Anion Adsorption Onto Novel Chelating Fibers
Macromolecular rapid communications(2002)
摘要
A new chelating fiber, poly(acrylo-amidino diethylenediamine), was synthesized based on polyacrylonitrile fibers in diethylenetriamine with the aid of AlCl 3 . Complex formation with CrO 4 2- was strongly pH-dependent, as complexes formed only in the presence of NH 3 + and NH 2 + . 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.
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关键词
chelating fiber,FT-IR,ion exchangers,pH selectivity,polymer/chromate ion complex
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