Characterizations for Vinylimidazolium Based Ionic Liquid Polymer Stationary Phases for Capillary Gas Chromatography |
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| Authors: | Yu-Nung Hsieh Richard S. Horng Wen-Yueh Ho Ping-Chih Huang Ching-Yun Hsu Thou-Jen Whang Chun-Hsiung Kuei |
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| Affiliation: | (1) Department of Chemistry, National Cheng Kung University, No.1, Ta-Hsueh Road, Tainan, 70101, Taiwan, ROC;(2) Department of Chemical Engineering, I-Shou University, Kaohsiung, 1 Sec. 1, Syuecheng Road, Dashu Township, Kaohsiung County, Kaohsiung, Taiwan, ROC;(3) Department of Cosmetic Science, Chia Nan University of Pharmacy and Science, 60 Erh-Jen Road, Sec.1 Pao-An, Jen-Te Hsiang, Tainan, 717, Taiwan, ROC;(4) Department of Chemical and Materials Engineering, Cheng Shiu University, 840, Cheng Ching Road, Niaosong, Kaohsiung, 83347, Taiwan, ROC |
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| Abstract: | Six polyvinylimidazolium based ionic liquids were prepared for use as stationary phases for gas chromatography. The influences of the attached side-chains (hexyl-, octyl- and phenylpropyl-) on the vinylimidazolium cations and of different counter ions (bromide, hexafluorophosphate, bis-trifluoromethanesulfonlyimide, and bis-trifluoroethanesulfonylimide) were studied. Linear solubility parameter experiments were conducted to characterize the specific interactions of these stationary phases. Some of the polymerized ionic liquid stationary phases exhibited unique structural selectivity. m-, and p-xylenes could be distinguished. The preparation of the polymerized ionic liquid column is simple and reliable. This work provides detailed information for designing polymerized ionic liquids, and shows that these materials have great potential extending the range of options for stationary phases in gas chromatography. |
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| Keywords: | Gas chromatography Stationary phases Interaction parameters Polymerized ionic liquid |
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