Highly efficient, reversible iodine capture and exceptional uptake of amines in viologen-based porous organic polymers.

ABSTRACT: A viologen-based porous organic polymer, POP-V-VI, was designed and synthesized by a facile nucleophilic substitution between cyanuric chloride and 1,2-bis(4-pyridinium) ethylene. Together with the reported POP-V-BPY with a similar structure, these viologen-based porous organic polymers bear high charge density, phenyl ring and nitrogenous affinity sites, which endow them with excellent iodine vapor uptake capacity (4860 mg g^-1 for POP-V-VI and 4200 mg g^-1 for POP-V-BPY) and remarkably high adsorption capacity for pyridine (4470 mg g^-1 for POP-V-VI and 8880 mg g^-1 for POP-V-BPY) and other aliphatic amines. POP-V-VI and POP-V-BPY could be efficiently recycled and reused three times without significant loss of iodine vapor uptake. All these results

SUBMITTER: Li M 

PROVIDER: S-EPMC9054242 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature