Microporous organic polymers (MOPs) with high specific surface areas

low skeletal density

various structures

and porosity and functional flexibility for rational design exhibit excellent application potential in CO

2

adsorption and separation field

becoming one of the research focuses of porous materials. Phthalazinone and its derivatives have asymmetric

aromatic and heterocyclic structures with rigid and twisted characteristics

which will promote the formation of the porous by prohibiting the close packing of the polymer chains and thus providing freedom volumes. This paper reviews the research process of the design

preparation and gas adsorption and separation of the covalent triazine frameworks and polymers of intrinsic microporosity using the phthalazinone miety as the core. The results indicate that a series MOPs can be successfully constructed by the phthalazinone structure with relatively high specific surface areas and the heterocycle may increase the affinity between the polymer skeletons and CO

2

molecule with the improvement of the adsorption and separation properties at lower pressure. Meanwhile

the flexible structure design and easy monomer synthetic methods will reduce the preparation cost of such material

exhibiting very good potential application prospect.