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Benzimidazolium ionic liquid functionalized star-polycaprolactone stationary phase for capillary gas chromatography.
- Source :
- Canadian Journal of Chemistry; Feb2024, Vol. 102 Issue 2, p47-55, 9p
- Publication Year :
- 2024
-
Abstract
- In this work, an innovative ionic liquid functionalized star-shaped polymer is synthesized by coupling star-polycaprolactone with benzimidazolium (star-PCL-Bim), and statically coated into a capillary column for gas chromatographic (GC) separations. The fabricated star-PCL-Bim capillary column with moderate-polar nature reveals a high column efficiency of 3598 plates/m for n-dodecane at 120 °C, and advantageous distinguishing ability (R > 1.5) for 9 aromatic isomer mixtures and 12 cis-/trans-isomers. Its excellent resolving capacity can be credited to the architecture of star-PCL-Bim, the PCL arms, and π-electron-rich benzimidazolium cations, and it results in a quite different retention behavior of star-PCL-Bim from that of star-PCL and commercial HP-35 columns, with "dual-nature" selectivity in separating a mixture including 29 compounds. These favorable chromatographic characteristics demonstrate the great application potential of this material in GC, and provide a prospective strategy to obtain high-performance stationary phases. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00084042
- Volume :
- 102
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Canadian Journal of Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 175365485
- Full Text :
- https://doi.org/10.1139/cjc-2023-0068