Coskun Research Group has recently published a new article in the journal Helvetica Chimica Acta, entitled "Eutectic Molten Salt Synthesis of Highly Microporous Macrocyclic Porous Organic Polymers for CO2 Capture". 

For more infrmation and to read the article: https://onlinelibrary.wiley.com/doi/epdf/10.1002/hlca.202300072

Abstract 

The development of porous materials is of great interest for the capture of CO2from various emission sources, which is essential to  mitigate  its  detrimental  environmental  impact.  In  this  direction,  porous  organic  polymers  (POPs) have  emerged  as prime candidatesowing to their structural tunability, physiochemical stability and high surface areas. In an effort to transfer an intrinsicproperty of a cyclotetrabenzoin-derived macrocycle—its high CO2affinity—into porous networks, herein we report the synthesis of three-dimensional (3D) macrocycle-based POPs through the polycondensation of an octaketone macrocycle with phenazine-2,3,7,8-tetraamine  hydrochloride.  This  polycondensation  was  performedunder  ionothermal  conditions,using an eutectic  saltmixture in the temperature range of 200 to 300oC. The resulting polymers, named 3D-mmPOPs,showedreaction temperature-dependent surface areas and gas uptake properties.3D-mmPOP-250 synthesized at 250 °C exhibited a surface area of up to 752 m2g−1andhigh microporosity originating from the macrocyclic units, thusresulting in an excellent CO2binding enthalpy of 40.6 kJ mol−1and CO2uptake capacitiesup to 3.51 mmol g−1at 273 K, 1.1bar.