Porous Organic Polymers Constructed from Tröger's Base as Efficient Carbon Dioxide Adsorbents and Heterogeneous Catalysts

Abstract

Through a radical solvothermal polymerization method, we synthesized two porous organic polymers based on Tröger's base (POP‐TB and POP‐Me‐TB) from the corresponding vinyl‐functionalized monomers (2,8‐divinyl‐6H,12H‐5,11‐methanodibenzo[b,f]diazocine and 2,8‐divinyl‐4,10‐dimethly‐6H,12H‐5,11‐ethanodibenzo[b,f]diazocine; v‐TB and v‐Me‐TB). The structure and porosity of these polymers are verified by using solid‐state NMR spectroscopy, elemental analysis, SEM, TEM, N2 sorption isotherms, and CO2 sorption tests. They exhibit high surface areas and moderate pore volumes, which give high CO2 adsorption capacities (90 and 71 mgCO2 g−1 at 273 K and 60 and 44 mgCO2 g−1 at 298 K for POP‐TB and POP‐Me‐TB, respectively) under a CO2 pressure of 1 bar. In addition, they display excellent catalytic activities together with highly stability as heterogeneous catalysts in the benchmark Knoevenagel reactions.

Porous Organic Polymers for CO2 Storage and Conversion Reactions

“…Xiao et al. have used vinyl‐functionalized monomers for the radical polymerization reaction for the synthesis of POPs, which showed good CO 2 uptakes at 273 and 298 K . In this context Ma et al.…”

Hydroxylamine-Anchored Covalent Aromatic Polymer for CO2 Adsorption and Fixation into Cyclic Carbonates

“…Several materials have been investigated for their potential for CO 2 capture or for catalytic CO 2 conversion including supported silica, , metal organic frameworks (MOFs), − covalent organic polymers (COPs), − and porous carbons. , Among these materials, COPs, in view of their numerous advantageous properties including high surface areas, tunable skeletons, excellent physicochemical stabilities, and flexibility for rational designing, have been shown to be highly promising for efficient CO 2 adsorption and organic transformation. − COPs have been prepared via several different synthetic routes such as coupling reactions, , Friedel-Crafts reaction, , Co (0) -catalyzed trimerization of alkynes, ZnCl 2 -catalyzed trimerization of nitrile, Schiff-base reaction, nucleophilic substitution reaction, and co-condensation/polycondensation reactions . Among these, Friedel-Crafts reaction is a simple and facile synthetic route to prepare the high surface area COPs from commercially available chemicals.…”

Cellulose‐Phytic Acid Composite Complexed Ru Catalyst for CO2 Hydrogenation to Free Formic Acid

“…The consumption of fossil fuels has emitted huge amount of CO 2 , and has caused severe environmental problems. Therefore, the efficient capture and utilization of CO 2 has received considerable attention all over the world [1–7] . As a non‐toxic, cheap, and renewable C1 feedstock, CO 2 can be transformed into value‐added chemicals, such as formic acid, [8–17] hydrocarbons, [18–20] alcohols, [21–28] aldehydes, [29–31] carbonates.…”