Next generation polymers of intrinsic microporosity with tunable moieties for ultrahigh permeation and precise molecular CO2 separation
Next generation polymers of intrinsic microporosity with tunable moieties for ultrahigh permeation and precise molecular CO2 separation
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DOI：
10.1016/j.pecs.2021.100903
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发表时间：
2021-05
影响因子：
29.5
通讯作者：
A. A. Shamsabadi-A.;M. Rezakazemi;Farzad Seidi;H. Riazi;T. Aminabhavi;M. Soroush
中科院分区：
文献类型：
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作者：
A. A. Shamsabadi-A.;M. Rezakazemi;Farzad Seidi;H. Riazi;T. Aminabhavi;M. Soroush
通过在聚合物骨架中引入扭曲的刚性基团，合成了具有高自由体积的本征微孔聚合物。尽管这些聚合物具有许多吸引人的特性，但由于其快速的物理老化，其制成的膜尚未在工业上使用。PIM前所未有的CO2渗透性和令人满意的CO2/N2和CO2/CH4选择性导致了2019年天然气混合物的新上限。本文综述了PIM基膜的最新研究进展。它讨论了聚合物合成策略，以改变PIM结构，从而得到的膜具有更好的CO2分离性能和更低的物理老化。这些策略包括使用具有合适侧链、扭结部分和稳定结构的单体。
Polymers of intrinsic microporosity (PIMs) with high free volumes have been synthesized by incorporating contorted rigid moieties into polymers backbones. Despite their many appealing properties, membranes made of these polymers have not been used industrially because of their fast physical aging. The unprecedented CO2permeability and satisfactory CO2/N2and CO2/CH4selectivity of PIMs have led to establishing the new 2019 upper bounds for the gas mixtures. This article reviews recent advances in the field of PIM-based membranes. It discusses polymer synthesis strategies to modify PIM structures such that the resulting membranes have improved CO2separation performance and lower physical aging. The strategies include the use of monomers with suitable side chains, kinked moieties, and stable structures.