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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 18, Number 12
BKCSDE 18(12)
December 20, 1997 

Selective Transport of Pb(Ⅱ) Ion by Acyclic Polyethers Bearing Amide End-Groups
Jong Seung Kim*, Sang Chul Lee, Eung Tae Kim, Jae Hoon Cho, Moon Hwan Cho, Jae Hyung Yoo, Joung Hae Lee
A series of acyclic polyethers bearing amide end-groups and lipophilic alkyl chains (3-5) were successfully synthesized with quantitative yields. Based upon the transport experiment in a bulk liquid membrane (BLM) system and solvent extraction, a very high selectivity of Pb2+ over other transition metal cations was observed. Measurement of thermodynamic parameters for complexation in methanol at 25 ℃ gave a strong evidence for excellent selective complexation for lead ion over other transition metal ions.
1256 - 1260
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