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|Title:||Preparation and study of two polysiloxanes with pendant hand-basket type calixarene stationary phases for capillary gas chromatography|
|Authors:||Zhang, L.-F. |
|Keywords:||Calixarene stationary phases|
Polysiloxane stationary phases
Stationary phases, GC
|Source:||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. https://doi.org/10.1016/S0021-9673(99)00162-4|
|Abstract:||In this study two novel pendant hand-basket type calixarene gas chromatography stationary phases were prepared by hydrosilylation of ω-undecenyloxymethyl dimethyl calix-15C5 and ω-undecenyloxymethyl dimethyl calix-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 calixcrown 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|
|Appears in Collections:||Staff Publications|
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