Polymer–Metal–Organic Frameworks (polyMOFs) as Water Tolerant Materials for Selective Carbon Dioxide Separations

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• 作者：Zhenjie Zhang ; Ha Thi Hoang Nguyen ; Stephen A. Miller ; Ann M. Ploskonka ; Jared B. DeCoste ; Seth M. Cohen
• 刊名：Journal of the American Chemical Society
• 出版年：2016
• 出版时间：January 27, 2016
• 年：2016
• 卷：138
• 期：3
• 页码：920-925
• 全文大小：441K
• ISSN：1520-5126

文摘

Recently, polymer–metal–organic frameworks (polyMOFs) were reported as a new class of hybrid porous materials that combine advantages of both organic polymers and crystalline MOFs. Herein, we report a bridging coligand strategy to prepare new types of polyMOFs, demonstrating that polyMOFs are compatible with additional MOF architectures besides that of the earlier reported IRMOF-1 type polyMOF. Gas sorption studies revealed that these polyMOF materials exhibited relatively high CO₂ sorption but very low N₂ sorption, making them promising materials for CO₂/N₂ separations. Moreover, these polyMOFs demonstrated exceptional water stability attributed to the hydrophobicity of polymer ligands as well as the cross-linking of the polymer chains within the MOF.