title: Charged Porous Polymers using a Solid C-O Cross-Coupling Reaction.
abstract: Herein, we report a green, fast, efficient mechanochemical strategy for charged porous polymers (CPPs). A cationic CPP with basic anions and an anionic CPP with Li(+) cations were fabricated by solid grinding under solvent-free conditions. Compared with solution-based synthesis, mechanochemical grinding can shorten the reaction time from dozens of hours to several minutes (60-90 min) to form polymers possessing a high molecular mass and low polydispersity. During the construction of CPPs, a Pd-catalyzed solid polycondensation based on unactivated organic linkers was introduced. In particular, CPPs with basic phenolic or proline anions showed good activity and stability in SO2 capture, and Li(+) -functionalized CPPs can be post-modified to CPPs with other metal ions by ion exchange, highlighting the tailorable feature of ionic-modified CPPs.
authors.affiliation: Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge 37830, TN (USA). chemistryzpf@163.com.
authors.forename: Pengfei
authors.initials: P
authors.lastname: Zhang
authors.affiliation: Department of Chemistry, University of Tennessee, Knoxville 37996, TN (USA).
authors.forename: Xueguang
authors.initials: X
authors.lastname: Jiang
authors.affiliation: Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge 37830, TN (USA).
authors.forename: Shun
authors.initials: S
authors.lastname: Wan
authors.affiliation: Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge 37830, TN (USA). dais@ornl.gov.|Department of Chemistry, University of Tennessee, Knoxville 37996, TN (USA). dais@ornl.gov.
authors.forename: Sheng
authors.initials: S
authors.lastname: Dai
keywords: acid gas capture; mechanochemistry; microporous materials; porous polyelectrolytes; porous polymers