Preparation and chromatographic characteristics of calix[4]arene polysiloxane as stationary phases for capillary gas chromatography |
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Authors: | X H Lai L Lin C Y Wu |
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Institution: | (1) Department of Chemistry, Wuhan University, 430072 Wuhan, P.R. China |
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Abstract: | Summary Two new kinds of calix4]arene derivatives, 5, 11, 17, 23-tetra-tert-butyl-25,27-bis(isopropylcarbamoyl-methoxy)-26,28-diundecenyloxy
calix4]arene (C4]A) and 25,27-dibutoxy-5, 11, 17, 23-tetra-tert-butyl-26,28-diundecenyloxy calix4]arene (C4]B0, are prepared
and then are polymized by two different processes. Three calix4]arene polysiloxane stationary phases for capillary gas chromatography
are obtained. Their chromatographic characteristics, including column efficiency, polarity, selectivity, glass-transition
temperature and thermal stability are studied. Retention mechanisms are also discussed. |
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Keywords: | Gas chromatography Calix[4]arene polysiloxane stationary phases |
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