Thermotropic laterally attached liquid crystalline polymers: I. New stationary phases for high-performance liquid chromatography

Up to now thermotropic liquid crystalline side chain polymers have been seldom used as stationary phases in high-performance liquid chromatography (HPLC). The preparation of a new class of surface modified silica gels is reported. They are obtained by coating on the silica support liquid crystalline...

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Published in:Journal of Chromatography A 1998-06, Vol.810 (1), p.19-31
Main Authors: Terrien, I, Achard, M.F, Félix, G, Hardouin, F
Format: Article
Language:English
Subjects:
Analytical chemistry
Chemistry
Chromatographic methods and physical methods associated with chromatography
Exact sciences and technology
Liquid crystalline polymers
Other chromatographic methods
Polynuclear aromatic hydrocarbons
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creator Terrien, I
Achard, M.F
Félix, G
Hardouin, F
description Up to now thermotropic liquid crystalline side chain polymers have been seldom used as stationary phases in high-performance liquid chromatography (HPLC). The preparation of a new class of surface modified silica gels is reported. They are obtained by coating on the silica support liquid crystalline polysiloxanes with mesogenic side groups laterally attached to the polymer backbone through a flexible spacer. Their chromatographic behavior in reversed-phase HPLC is described for the separation of polycyclic aromatic hydrocarbons. The results show excellent planarity and rod shape recognition capabilities. Comparisons with low-molecular-mass liquid crystalline-bonded silica and longitudinally attached liquid crystalline polymer-coated stationary phase are also reported. Finally, comparisons to commercially available C 18 phases are described for the separation of complex mixtures.
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subjects Analytical chemistry
Chemistry
Chromatographic methods and physical methods associated with chromatography
Exact sciences and technology
Liquid crystalline polymers
Other chromatographic methods
Polynuclear aromatic hydrocarbons
title Thermotropic laterally attached liquid crystalline polymers: I. New stationary phases for high-performance liquid chromatography
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