Hypercrosslinked conjugated microporous polymers for carbon capture and energy storage

Three hypercrosslinked conjugated microporous polymers were prepared using Friedel-Crafts reaction based on tetraphenylporphyrin, triphenylamine and tetraphenylmethane with p-dimethoxybenzene as an external crosslinker. The polymers show large surface areas (921 m² g^-1) and CO₂ uptake capacity (12.3 wt%). Due to its π-conjugated structure, the tetraphenylporphyrin based polymer (HCTPP) shows high specific capacitance (179 F g^-1). Considering their large surface area, high gas uptake capacity, good specific capacitance and facile synthesis method, these materials are promising candidates for carbon capture and energy storage.