Solubility and diffusivity constitute two vertically tunable parameters for designing high-performance membrane materials for gas separation. The latter approach has received great attention, yielding a wealth of size-sieving materials reported in the literature. By contrast, this review highlights recent achievements of sorption-enhanced materials with superior gas separation performance, including fluorinated polymers for He/gas and gas/CH₄ separations, and polar polymers and mixed-matrix materials comprising metal–organic frameworks for olefin/paraffin separations. The under-valued solubility and solubility selectivity are powerful tools in designing materials with superior separation properties and good resistance to plasticization caused by condensable components in the feed, which, otherwise, would decrease gas selectivity.

溶解度和扩散系数构成两个垂直可调参数，用于设计用于气体分离的高性能膜材料。后一种方法受到了极大的关注，产生了许多文献报道的筛分材料。相比之下，本综述重点介绍了具有出色气体分离性能的吸附增强材料的最新成就，包括用于He / gas和Gas / CH _4的氟化聚合物。分离，以及用于烯烃/石蜡分离的包括金属有机骨架的极性聚合物和混合基质材料。被低估的溶解度和溶解度选择性是设计物料的强大工具，这些物料具有优异的分离性能，并且由进料中的可冷凝成分引起的良好的抗塑化性能，否则会降低气体的选择性。