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

Abstract

Aiming at tuning the adsorption and fluorescence properties of targeted porous organic polymer, four new aminal-linked porous organic polymers (NAPOPs) were synthesized through the reaction of 1,4-Bis(4,6-diamino-s-triazin-2-yl) benzene (BATB) with four kinds of aldehydes substituted with different N-heterocyclic groups. Among the polymers, NAPOP-3 decorated with 5-phenyl-tetrazole group shows the largest CO 2 adsorption capacity (2.52 mmol g 21 at 273 K and 100 kPa) because of its relative large surface area, while NAPOP-1 decorated with piperazine groups shows relative large CO 2 /N 2 adsorption selectivity (77 at 273 K and 100 kPa), attributable to its large CO 2 adsorption heats and cabined pore (<4 Å ). Meanwhile, NAPOP-1 and 23 exhibit high adsorption rate toward iodine with a high capacity (>240 wt %). In addition, different luminescence emissions were also observed for NAPOPs, indicating different intramolecular charger transfer occurred inside polymer networks.

N‐rich Porous Organic Polymer as Heterogeneous Organocatalyst for the One‐Pot Synthesis of Polyhydroquinoline Derivatives through the Hantzsch Condensation Reaction

“…The nitrogen adsorption/desorption analysisw as performed to analyze the specific surface area with architecturalr igiditya nd permanent porosity of TrzMOP.T he N 2 adsorption/desorption isotherm of TrzMOP and recycled TrzMOP matrix were represented in Figure 2a nd ESI, Figure S4 which displayed the features of both type Ia nd IV isotherms according to IUPAC nomenclature. [47] At the very low pressure region isotherm shows as harpi ncrease of adsorbed N 2 volume which indicates the presenceo fm icroporosity in the polymeric material. Further,a t very high pressure region as mall hysteresis loop together with large nitrogen uptake suggested the existence of mesoporosity in this material.…”

Synthesis of nitrogen-rich polymers by click polymerization reaction and gas sorption property

“…The moderate capacity originated from the low surface area. It was found that nitrogen-rich polymer favored the sorption toward iodine owing to the stronger interaction between nitrogen atom and electron-deficient I2 [4,[32][33]. The inserted images in Figure 4 showed the color change of I2-cyclohexane (1 mg ml -1 ) solution after adding 25 mg of CMOP-1 and CMOP-2.…”

“…Zhang et al synthesized polymers with N-heterocyclic groups (NAPOPs). NAPOP-1 and NAPOP-3 exhibit high adsorption toward iodine (>240 wt%) and moderate CO2 adsorption [32]. Geng et al constructed novel triazine-based TCMPs by Friedel-Crafts polymerization reaction [33].…”

Experimental and Neural Network Modeling of Partial Uptake for a Carbon Dioxide/Methane/Water Ternary Mixture on 13X Zeolite

“…Most of the studies on the separationo fC O 2 concerned new adsorbents such as metal-organic frameworks (MOFs), [29][30][31][32][33][34] N-doped porous carbons (NPCs), [35] microporous coordination polymers (MCPs), [36] covalento rganic polymers (COPs), [37][38][39] and porous organic polymers (POPs) [40][41][42] compared to commercial adsorbents (i.e., molecular sieves,a ctivated carbons,a nd silica gel) [43][44][45][46] and relied on theoretical selectivity analysis.E ven with the wide range of utilization in this field, there is still al ack of information on the characteristic behavior of CO 2 adsorption in multicomponent mixtures.T here are no detailed studies for comparison between these types of commercial adsorbents, which are still pioneering materials for CO 2 removal, [47][48][49] related to their partialc omponent uptake performances for awide range of mixturec ombinations and conditions. Molecular sieve zeolite (MSZ) adsorbents are one of the most popular solid adsorbents utilizedn ormally for the separation and purification of multicomponent mixtures.T hese adsorbents have low Si/Al ratios (e.g.,1 3X and 5A zeolite), which results in higher uptake amounts of CO 2 at low pressures ( % 2.5 mmol g À1 at 298 Ka nd 0.1 bar).…”