A novel crosslinked microporous polymer was synthesized via a modified acid-catalyzed Friedel-Crafts polycondensation reaction. By virtue of the rigid and polarizable monomers (aniline and pyrrole), the polymer, termed KFUPM-4, was proven permanently porous (Brunauer-Emmett-Teller surface area = 650 m² g⁻¹) with a high CO₂ capacity (33 cm³ g⁻¹ at 760 Torr and 298 K) and selectivity (CO₂:CH₄ selectivity = 15:1 at 298 K). As a result of these properties, KFUPM-4 was subjected to breakthrough measurements, whereby the material's ability to selectively capture CO₂ under dynamic conditions from both dry and wet mixed gas streams was clearly demonstrated.

通过改性的酸催化的Friedel-Crafts缩聚反应合成了新型的交联微孔聚合物。借助于刚性和可极化的单体（苯胺和吡咯），被称为KFUPM-4的聚合物被证明是永久多孔的（Brunauer-Emmett-Teller表面积= 650 m ²  g ^-1），具有较高的CO ₂容量（33）。 cm ³  g ^-1在760 Torr和298 K下）和选择性（在298 K下CO ₂：CH ₄选择性= 15：1）。由于这些特性，对KFUPM-4进行了突破性的测量，从而使材料具有选择性捕获CO ₂的能力。 在动态条件下，干，湿混合气流均得到了清晰证明。