How to Design Porous Organic Polymers as Gas Capture?

In recent years, the design and construction of porous organic polymers (POPs) have attracted significant interest from scientists because of their extensive potential applications in the areas of gas storage, separation, heterogeneous catalysis and sensors, etc. [1]. POP materials are often prepared via the direct synthesis methodology because this approach has characteristic advantages: a high utilization efficiency of the starting materials and facile formation of micro pores [2]. In this methodology, two important issues should be addressed. One is selecting proper chemical synthesis methods to efficiently link the building blocks together over a broad range. Among various methods, Sonogashira– Hagihara reaction is a typical class of routes and has been well established for the synthesis of POP materials [3] especially conjugated micro porous polymers (CMPs), which combine micro porosity and πconjugated bond and have a great promise in the range of applications such as lightharvesting, photo catalysis and sensing, except the typical usage in gas storage [4]. Another is the choice of the correct monomers, which are crucial to the formation of porous networks with adequate stability and largely influence the various properties of the final products.