Open AccessExtensive Screening of Solvent‐Linked Porous Polymers through Friedel–Crafts Reaction for Gas Adsorption
Author(s) -
Rozyyev Vepa,
Hong Yeongran,
Yavuz Mustafa S.,
Thirion Damien,
Yavuz Cafer T.
Publication year - 2021
Publication title -
advanced energy and sustainability research
Language(s) - English
Resource type - Journals
ISSN - 2699-9412
DOI - 10.1002/aesr.202100064
Subject(s) - thermogravimetric analysis , dichloromethane , polymer , solvent , chemical engineering , fourier transform infrared spectroscopy , porosity , adsorption , materials science , chloroform , scanning electron microscope , friedel–crafts reaction , monomer , chemistry , polymer chemistry , organic chemistry , catalysis , engineering , composite material
Scalability, cost, and feasibility of porous structures in gas capture are prerequisites for emerging materials to be promising in the industry. Herein, a simpler variant of Friedel−Crafts’ synthesis of highly porous covalent organic polymers (COPs) based on an unprecedented solvent‐mediated crosslinking is presented. Alkyl chlorides behave as both solvents and linkers in the presence of AlCl 3 . Studies on three classes of 18 different monomers using dichloromethane, chloroform, and 1,2‐dichloroethane lead to producing 29 new COPs (124−152). Polymers are characterized by Fourier‐transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR) spectroscopy, elemental composition analysis, scanning electron microscope (SEM), thermogravimetric analysis (TGA), and porosity analyzer. The synthesized COPs exhibit structures from nonporous to highly porous morphologies with Brunauer–Emmett–Teller (BET) surface areas as high as 1685 m 2 g −1 . These COPs show high gas uptake toward CO 2 (up to 4.71 mmol g −1 at 273 K, 1.1 bar), CH 4 (up to 1.31 mmol g −1 at 273 K, 1.1 bar), and H 2 (up to 2.02 wt% at 77 K, 1.1 bar). The findings point to significant potential in producing sustainable porous materials through simple and scalable methodology developed here.