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Journal of Structural Chemistry

2010 year, number 7

Structural study of synthesized microcapsulated extractants using IR spectroscopy and electron microscopy

A. G. Shirokova, L. A. Pasechnik<, S. P. Yatsenko, S. V. Borisov, I. G. Grigorov
Keywords: microcapsule, crown ether, suspension polymerization, IR spectroscopy, morphology, extraction, scattered elements
Pages: 140-144


A microcapsulated material containing dibenzo-18-crown-6 (DB18C6) or 18-crown-6 (18-C6) as an extractant was synthesized. IR spectroscopy was used to investigate the state of encapsulated crown ether and the mechanism of Sc3+ extraction from a sulfate solution, which proceeds via the formation of a "host-guest" complex with inclusion of a metal ion into the macrocycle hole. The electron microscopy examination revealed the effect of solvent addition during the synthesis and the crown ether composition on the morphology of synthesized samples.