Back Cover: Triptycene is a unique building block for high‐performance polymers due to its symmetric D_3h structure containing fixed internal free‐volume elements. A novel triptycene diamine (2,6(7)‐dihydroxy‐3,7(6)‐diaminotriptycene) (DAT1‐OH) for the synthesis of an intrinsically microporous polyimide (6FDA‐DAT1‐OH) is described by Ingo Pinnau and co‐workers in article number 1700303. As illustrated in the cover design, it exhibits excellent performance as membrane material for gas separation applications, specifically for the removal of CO₂ from natural gas.

中文翻译：

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大分子。快速通信。18/2017

封底：由于其对称的D _3h结构包含固定的内部自由体积元素，三萜烯是高性能聚合物的独特构建基块。Ingo Pinnau和co。工人，文章编号1700303。如封面设计所示，它作为气体分离应用的膜材料，特别是用于从天然气中去除CO _2的膜材料，具有出色的性能。