材料科学
多孔性
介孔材料
聚合物
图层(电子)
化学工程
溶剂
吸附
涂层
甲基丙烯酸酯
分子
粒子(生态学)
高分子化学
复合材料
有机化学
化学
共聚物
催化作用
工程类
地质学
海洋学
作者
Siqi Li,Dongxu Wang,Yongjin Lee,Lei Tao
标识
DOI:10.1002/anie.202405288
摘要
The fundamental limitation for pore preservation in a Type III porous liquid (T3PL) is the need for a small aperture from the porous filler to realize size exclusion of a bulky solvent. We present a dual-layer surface weaving strategy that can disregard this limitation and achieve micro- and mesoporous metal-organic framework (MOF)-based T3PLs even with apertures much larger than the solvent molecules. By first weaving a tight network of poly(tert-butyl methacrylate) on the MOF surface, the poly(dimethylsiloxane) (PDMS) solvent can be effectively excluded from the pores while smaller guest molecules such as CO2, C2H4, and H2O can freely access the interior, as confirmed by low-pressure adsorption isotherms. Further application of a PDMS-containing polymer coating helps lower the viscosity of the PL due to increased particle dispersibility. This strategy has resulted in the successful construction of T3PLs with aperture sizes up to 3.1 nm.
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