微型多孔材料
气体分离
膜
高分子
聚合物
材料科学
合理设计
多孔性
化学工程
热解
部分
纳米技术
化学
有机化学
复合材料
工程类
生物化学
作者
Ying Liu,Xiaobo Chen,Tianliang Han,Can Wang,Hongyan Liu,Ying Sun,Peijun Zheng,Haitao Zhang,Shuangjiang Luo
标识
DOI:10.1016/j.seppur.2023.125978
摘要
This review summarized the performance of recently developed microporous polymers for practical industrial O2/N2 separations. The macromolecular design of innovative polymers of intrinsic porosity and derivatives is evaluated from the perspective of pore structure regulation for their outstanding O2/N2 separation performance. The structural groups that could fine-tune the free volume elements are examined to discern the promising moiety and architectures to improve size-based sieving. The long-term aging behaviors of the state-of-the-art macromolecules are also screened to explore the impacts of improved pore/free volume configuration. The strategies using thermal treatments to reset the structure of microporosity were inspected for their potential to improve the gas permeability or enhance size-specific molecular sieving, including the thermal rearrangement of polymeric membrane and pyrolyzed carbon molecular membranes using pre-crosslinked precursor and PIM-derived precursors. Membrane process design and optimization are summarized to evaluate the prospects of these novel membrane materials for large-scale industrial applications.
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