Efficient CO2 capture by a task-specific porous organic polymer bifunctionalized with carbazole and triazine groups

Abstract

A porous triazine and carbazole bifunctionalized task-specific polymer has been synthesized via a facile Friedel-Crafts reaction. The resultant porous framework exhibits excellent CO2 uptake (18.0 wt%, 273 K and 1 bar) and good adsorption selectivity for CO2 over N2.

Tuning the adsorption and fluorescence properties of aminal‐linked porous organic polymers through N‐heterocyclic group decoration

“…Whereas that of other two NAPOPs display contrast varying tendency at high pressure. Notably, the selectivity of NAPOPs (34-77) at 273 K and 100 kPa are generally larger, as expected, than APOPs (23-44) 27 and many other POPs, such as polymelamine-based polymer (7), 42 TSPs (32-38 at 1bar), 43 PPFs (11-20), 44 and CTFs (14-31). 45 In particular, the selectivity of NAPOP-1 are even comparable with BILP-4 (79), 33 though inferior to some well performed polymers such as polyamine-tethered PPNs (101).…”

Efficient CO 2 capture by triptycene-based microporous organic polymer with functionalized modification

“…Compared to its parent polymer TPP-1 (3.43 mmol g À1 , 273 K), TPP-1-NH 2 exhibited higher CO 2 uptake, with an increase of up to 82%. It is well known that the incorporation of electron-rich functional groups into a network would provide more polar adsorption sites, which could result in strong dipoleequadrupole interactions with CO 2 molecules, thus effectively improve the CO 2 adsorption capability [22,30,33]. The multi-amino groups and high micropore content in TPP-1-NH 2 should be the decisive factors for its high CO 2 uptake.…”

“…Particularly, after the modification with sulfonic acid, lithium sulfonate or polyamine, the porous polymer network-6 (PPN-6) with an ultrahigh-surface-area presented an impressive CO 2 adsorption capacity as well as high CO 2 /N 2 selectivity [23,31]. Additionally, the incorporation of nitrogen-rich polar moieties such as triazine and carbazole groups is also considered as a potential route to increase CO 2 adsorption capacity due to their relatively strong dipoleequadrupole interactions with CO 2 molecules [30,32,33]. Very recently, an efficient post-synthetic modification method was developed to make surface of the microporous polymer functionalized from amines to amides [26].…”

Bifunctionalized conjugated microporous polymers for carbon dioxide capture

“…The porous organic polymer of SNU-C1-sca with carboxy and triazole groups exhibited a CO 2 uptake capacity as high as 4.38 mmol g À1 (273 K/1.0 bar) [21]. The task-specific porous organic polymer TSP-2 with carbazole and triazine groups showed a CO 2 uptake capacity of 4.1 mmol g À1 at 273 K/1.0 bar [22]. The sulfonate-grafted and polyamine-tethered porous polymer networks produced from PPN-6 by post modification exhibited exceptionally high CO 2 capture capacity [23e25].…”