Cyanobiphenyl-Mesogened Liquid Crystalline Polymer Bonded on Silica as the Stationary Phase with Shape and Polarity Recognition for LC |
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| Authors: | Zheng Wei Licheng Wang Jing Li Xia Liu Shengxiang Jiang |
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| Institution: | 1. Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for National Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
2. Graduate School of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100039, China
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| Abstract: | Cyanobiphenyl-mesogened liquid crystalline polymer is bonded on silica by surface-initiated atom transfer radical polymerization and is used as the stationary phase for liquid chromatography. Various instrumental analyses such as elemental analysis, X-ray photoelectron spectroscopy and differential scanning calorimetry were used for its characterization. The stationary phase exhibits multiple characteristics of low hydrophobicity, low hydrophobic selectivity, polarity recognition and shape selectivity in the separation of polyaromatic hydrocarbons and polar neural aromatic compounds. Temperature and mobile phase composition were confirmed to have effects on the chromatographic behavior. Isomers of polyaromatic hydrocarbons and carotenes are well separated on the stationary phase. |
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