In situ synthesis of pyridinium-based ionic porous organic polymers with hydroxide anions and pyridinyl radicals for halogen-free catalytic fixation of atmospheric CO2

Pyridinium-based ionic porous organic polymers (Py-iPOPs) were constructed from newly-designed acetonitrile-functionalized ionic liquids and multi-carbaldehyde monomers by the base-catalyzed Knoevenagel condensation. The obtained Py-iPOPs having in situ formed hydroxide anions...