TY - JOUR
T1 - Charged Porous Polymers using a Solid C-O Cross-Coupling Reaction
AU - Zhang, Pengfei
AU - Jiang, Xueguang
AU - Wan, Shun
AU - Dai, Sheng
N1 - Publisher Copyright:
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
PY - 2015/9/1
Y1 - 2015/9/1
N2 - 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. A versatile and clean mechanochemical strategy has been developed for the dibenzodioxane-forming reaction toward charged porous polymers (see scheme). Charged polymers with cationic or anionic skeletons were synthesized in a fast (60-90 min) and solvent-free manner. The intrinsically charged character makes these polymers ideal matrices for introducing various cations or anions with specific tasks (e.g., basic anions for SO2 capture or metal ions).
AB - 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. A versatile and clean mechanochemical strategy has been developed for the dibenzodioxane-forming reaction toward charged porous polymers (see scheme). Charged polymers with cationic or anionic skeletons were synthesized in a fast (60-90 min) and solvent-free manner. The intrinsically charged character makes these polymers ideal matrices for introducing various cations or anions with specific tasks (e.g., basic anions for SO2 capture or metal ions).
KW - acid gas capture
KW - mechanochemistry
KW - microporous materials
KW - porous polyelectrolytes
KW - porous polymers
UR - http://www.scopus.com/inward/record.url?scp=84940375002&partnerID=8YFLogxK
U2 - 10.1002/chem.201501814
DO - 10.1002/chem.201501814
M3 - Article
AN - SCOPUS:84940375002
SN - 0947-6539
VL - 21
SP - 12866
EP - 12870
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 37
ER -