Synthesis and separation properties for Cu(II)-Ni(II) of macroporous crosslinked polystyrene-supported triethylenetetramine resin using Cu(II) as template
✍ Scribed by Changmei Sun; Rongjun Qu; Xiangrong Sun; Chunnuan Ji; Chunhua Wang
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 453 KB
- Volume
- 103
- Category
- Article
- ISSN
- 0021-8995
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✦ Synopsis
Abstract
A new method for preparing a novel macroporous chelating resin that has good adsorption capability for Cu(II) and high selectivity for it with the coexistence of Ni(II) was introduced in this article. First, the aminated resin (PS‐TETA) was synthesized by the reaction of crosslinked macroporous chloromethylated polystyrene with triethylenetetramine. Subsequently, PS‐TETA was coordinated with Cu(II) and then PS‐TETA‐Cu was obtained. After the crosslinking reaction of PS‐TETA‐Cu with epoxy chloropropane, the adsorbed Cu(II) was removed by chlorhydric acid, and then the target resin‐Cu(II) template triethylenetetramine crosslinked polystyrene resin was obtained. The selectively sorption tests for Cu(II) showed that the sorption capacity was as high as 1.6 mmol/g and the selectivity coefficient α~Cu(II)/Ni(II)~ could reach to 9.06 with the coexistence of Ni(II). SEM and nitrogen adsorption at 77 K methods were used to characterize the porous structure of the resin. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 963–967, 2007