Crosslinked polystyrene beads modified with polar groups for the separation of aromatic/aliphatic hydrocarbons |
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| Authors: | Huanyang Yu Zhenzhen Cai Xianying Liu Ming Li Zuosen Shi Zhanchen Cui |
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| Affiliation: | 1. State Key Laboratory for Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, People's Republic of China;2. College of Material Science and Engineering, Jilin Institute of Architecture and Civil Engineering, Changchun, People's Republic of China;3. Clinical Skills Training Center, Second Bethune Hospital, Jilin University, Changchun, People's Republic of China |
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| Abstract: | Crosslinked polystyrene (CPS) beads modified with polar groups for the separation of aromatic/aliphatic hydrocarbons were successfully prepared. The synthesized beads were characterized by Fourier transform infrared spectroscopy, X‐ray photoelectron spectroscopy, and thermogravimetric analysis. The effects of the crosslinking agents and polar groups on the swelling and selectivity performances toward n‐heptane/toluene mixtures were studied. Impressively, the results indicated that the sulfone‐modified CPS beads obtained a high toluene selectivity. Further adsorption tests with a variety of aromatic/aliphatic hydrocarbons were carried out at 50°C with initial aromatic concentrations of 13 wt %, and the results showed that the beads had a preferential selectivity for aromatic hydrocarbons, in particular, a higher separation factor of 6.76 for benzene/cyclohexane mixtures. We expect that modified CPS beads will serve as an effective material for the selective separation of aromatic/aliphatic hydrocarbons in chemical and petrochemical fields. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131, 40156. |
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| Keywords: | adsorption crosslinking polystyrene separation techniques swelling |
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