Extensive Screening of Solvent‐Linked Porous Polymers through Friedel–Crafts Reaction for Gas Adsorption

Scalability, cost, and feasibility of porous structures in gas capture are prerequisites for emerging materials to be promising the industry. Herein, a simpler variant Friedel−Crafts’ synthesis highly covalent organic polymers (COPs) based on an unprecedented solvent-mediated crosslinking is presented. Alkyl chlorides behave as both solvents linkers presence AlCl3. Studies three classes 18 different monomers using dichloromethane, chloroform, 1,2-dichloroethane lead producing 29 new COPs (124−152). Polymers characterized by Fourier-transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR) spectroscopy, elemental composition analysis, scanning electron microscope (SEM), thermogravimetric analysis (TGA), porosity analyzer. The synthesized exhibit from nonporous morphologies with Brunauer–Emmett–Teller (BET) surface areas high 1685 m2 g−1. These show uptake toward CO2 (up 4.71 mmol g−1 at 273 K, 1.1 bar), CH4 1.31 H2 2.02 wt% 77 bar). findings point significant potential sustainable through simple scalable methodology developed here.