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首页> 外文期刊>ACS Omega >Design and Synthesis of Imidazolium-Mediated Tr?ger’s Base-Containing Ionene Polymers for Advanced CO2 Separation Membranes
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Design and Synthesis of Imidazolium-Mediated Tr?ger’s Base-Containing Ionene Polymers for Advanced CO2 Separation Membranes

机译：咪唑鎓介导的Trger含碱的烯类聚合物的设计与合成，用于高级CO2分离膜

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It is highly desirable to integrate the CO2 solubility benefits of ionic liquids?(ILs)?in polymeric membrane systems for effective CO2 separations. Herein, we are exclusively exploring a series of four novel imidazolium-mediated Tr?ger’s base (TB)-containing ionene polymers for enhanced CO2 separation. The two diimidazole-functionalized Tr?ger’s base monomers synthesized from “ortho”- and “para”-substituted imidazole anilines were polymerized with equimolar amounts of two different aromatic and aliphatic comonomers (α,α′-dichloro-p-xylene and 1,10-dibromodecane, respectively) via Menshutkin reactions to obtain four respective ionene polymers ([Im-TB(o&p)-Xy][Cl] and ([Im-TB(o&p)-C10][Br], respectively). The resulting ionene polymers having halide anions were exchanged with [Tf2N]? anions, yielding a novel Tr?ger’s base material [Im-TB(x)-R][Tf2N] or “Im-TB-Ionenes”. The structural and physical properties as well as the gas separation behaviors of the copolymers of aromatic and aliphatic Im-TB-Ionenes have been extensively investigated with respect to the regiochemistry of imidazolium groups at the ortho and para positions of the TB unit. The imidazolium-mediated TB-Ionenes showed high CO2 solubility and hence an excellent CO2/CH4 permselectivity of 82.5. The Im-TB-Ionenes also displayed good thermal and mechanical stabilities.
机译：迫切需要将离子液体（IL）的CO 2溶解度优势整合到聚合物膜系统中，以实现有效的CO 2分离。在此，我们将专门研究一系列四种新型的咪唑介导的Trger含碱（TB）的紫罗烯聚合物，以增强CO2的分离。由“邻”-和“对”-取代的咪唑苯胺合成的两种二咪唑官能化的Trger碱单体与等摩尔量的两种不同的芳族和脂族共聚单体（α，α'-二氯对二甲苯和1，分别通过Menshutkin反应获得10-二溴代甘蔗），分别得到四种紫罗烯聚合物（[Im-TB（o＆p）-Xy] [Cl]和[[Im-TB（o＆p）-C10] [Br]）。将具有卤化物阴离子的紫罗烯聚合物与[Tf2N]α阴离子交换，得到新型的Trger基材[Im-TB（x）-R] [Tf2N]或“ Im-TB-Ionenes”。在TB单元邻位和对位的咪唑鎓基团的区域化学方面，广泛研究了芳族和脂族Im-TB-碘酮共聚物的气体分离行为，咪唑鎓介导的TB-酮表现出很高的分离度。 CO2溶解度，因此具有出色的CO2 / CH4选择性渗透率82.5。具有良好的热稳定性和机械稳定性。

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