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KMID : 1171820060210040049
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Journal of Environmental and Sanitary Engineering
2006 Volume.21 No. 4 p.49 ~ p.60
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Resin Synthesis of Adsorbent Uranium(Ⅵ) Ion using 1-Aza-18-Crown-6
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Kim Sun-Hwa
Kim Hae-Jin
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Abstract
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The ion exchange resins have been synthesized from chlormethyl styrene - 1,4 - divinylbenzene(DVB) with 1%, 2%, 4% and 8%-crosslinking and 1-aza-18-crown-6 macrocyclic ligand by copolymerization method. Content of chlorine in styrene-DVB copolymer was decreased as crosslink increased and it is because as crosslink increased 1%, 2%, 4% and 8% DVB content increased and crosslink density increased and cavity was reduced. Functional group of resin almost disappeared as C-C1 peak around 700㎝?¹ was substituted with 1-aza-18-C-6 macrocyclic ligand and new peak of C-N around 1020㎝?¹ appeared, so it was confirmed that styrene-DVB copolymer and ligand were compounded. As crosslink increased in the analysis of element contents, it resulted in the reduction of nitrogen content and it is because as crosslink increased, it led to the reduction of chlorine content in the process of substitution reaction and it affected macrocyclic ligand substituted. Thermo analysis curve of functional synthetic resin decomposed three part of 1-aza-18-C-6, styrene, and DVB. Form of functional synthetic resin showed distortion of its particles as macrocyclic ligand was introduced to styrene-DVB copolymer and hydrogen of ligand caused substitution with chlorine element of styrene molecule.
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KEYWORD
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styrene, 1-aza-18-crown-6(1-aza-18-C-6), macrocyclic ligand, crosslink, divinylbenzene(DVB)
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