Triptycene based and nitrogen rich hyper cross linked polymers (TNHCPs) as efficient CO2 and iodine adsorbent

Triptycene based polymeric networks are rapidly emerging as porous organic polymers (POPs) for efficient capture of small gas molecules. Further, such triptycene based frameworks are also being explored as adsorbents for radioactive iodine. Herein, a group of three unique Triptycene based and Nitrogen-rich Hyper Crosslinked Polymers (TNHCPs) have been easily obtained via the well-known Friedel-Craft alkylation reactions of triptycene with six-membered N-rich heterocycles. In these TNHCPs, the presence of triptycene motifs yields contorted and rigid polymeric frameworks with plenty of micropores and ultramicropores. Further, the presence of N-rich heterocycles increases their efficiency to selectively capture carbon dioxide and adsorb iodine vapours as well as iodide ions from aqueous solutions. Comparison with data in recent literature reveals that TNHCPs are better in these domains than several previously reported POPs in general and HCPs in particular.

Automated summary

Triptycene based nitrogen-rich hyper crosslinked polymers (TNHCPs) are emerging as efficient materials for capturing small gas molecules and adsorbing radioactive iodine. These materials have contorted and rigid polymeric frameworks with plenty of micropores and ultramicropores, increasing their efficiency for selective capture of carbon dioxide and iodine vapours. Furthermore, TNHCPs show better performance in these aspects compared to previously reported porous organic polymers and hyper crosslinked polymers.