Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/92274
Title: Preparation and study of two polysiloxanes with pendant hand-basket type calixarene stationary phases for capillary gas chromatography
Authors: Zhang, L.-F. 
Chen, L.
Lu, X.-R.
Wu, C.-Y.
Chen, Y.-Y.
Keywords: Calixarene stationary phases
Polysiloxane stationary phases
Stationary phases, GC
Issue Date: 30-Apr-1999
Citation: Zhang, L.-F., Chen, L., Lu, X.-R., Wu, C.-Y., Chen, Y.-Y. (1999-04-30). Preparation and study of two polysiloxanes with pendant hand-basket type calixarene stationary phases for capillary gas chromatography. Journal of Chromatography A 840 (2) : 225-233. ScholarBank@NUS Repository.
Abstract: In this study two novel pendant hand-basket type calixarene gas chromatography stationary phases were prepared by hydrosilylation of ω-undecenyloxymethyl dimethyl calix[4]-15C5 and ω-undecenyloxymethyl dimethyl calix[4]-18C6 with dichloromethane followed by condensation reaction with silanol-terminated polydimethylsiloxane. Important stationary phase properties of these two novel stationary phases such as column efficiency, polarity, and selectivity were examined and compared with those of ω-undecyloxymethyl-18-crown-6, 2,3-benzo-9-propyloxymethyl-15-crown-5 and 2,3-benzo-11-propyloxymethyl-18-crown-6. Excellent thermostability from 60 to 330°C with onset bleeding temperatures at 308°C have been found. The mechanism of specific selectivity for position isomers based on the calix[4]crown ether ring, the molecular size of the solute and its shape are discussed. Copyright (C) 1999 Elsevier Science BV.
Source Title: Journal of Chromatography A
URI: http://scholarbank.nus.edu.sg/handle/10635/92274
ISSN: 00219673
Appears in Collections:Staff Publications

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