Design and synthesis of a multifunctional porous N-rich polymer containing s-triazine and Tröger's base for CO₂ adsorption, catalysis and sensing

Abstract

A multifunctional porous N-rich polymer containing s-triazine and Tröger's base was synthesized. It shows selective adsorption for CO2, colorimetric performance for HCl and good catalytic activity in the Knoevenagel condensation.

Synthesised spirobichroman‐based polyimide functionalized by pyridine: Effects of substituent position on gas separation and thermal properties

“…Moreover, the acidic gas CO 2 permeability showed a significantly higher value than that of other test gases. This was attributed to the basic group of the pyridine structure facing enhanced interactions with CO 2 owing to Lewis acid‐base interactions, which increased the acidic gas CO 2 permeability . The carbon dioxide/methane selectivity was and the carbon dioxide/nitrogen selectivity was .…”

“…acidic gas CO 2 permeability. [42][43][44] The carbon dioxide/ methane selectivity was α CO 2 =CH 4 > 30 and the carbon dioxide/nitrogen selectivity was α CO 2 =N 2 > 24 . The turnstile-like rotary motion undergone by the methyl group and the basic group of pyridine contained in the polymers enhanced the passage of small-sized molecules to such as CO 2 and prevented that of large-sized molecules such as CH 4 and N 2 .…”

Multifunctional Hypercrosslinked Porous Organic Polymers Based on Tetraphenylethene and Triphenylamine Derivatives for High-Performance Dye Adsorption and Supercapacitor

“…Microporous organic polymers (MOPs) have attracted much attention as next-generation materials in the industry and academic areas because of their good thermal stability, low density, low regeneration energy, high pore volume and large BET (Brunauer–Emmett–Teller) surface area, synthetic diversity, and easier preparation [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ]. MOPs have been used in many potential applications, such as water treatment, drug delivery, chemical sensing, heterogeneous catalysis, energy storage, hydrogen evolution, nanofiltration, oil scavenging, carbon dioxide reduction, gas separation and gas storage [ 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 ]. There are different kinds of MOPs, such as conjugated microporous polymers (CMPs) [ 15 , 16 , 17 , 18 ], covalent organic frameworks (COFs) [ 16 , 17 , 18 , 19 , 20 ], polymers of intrinsic microporosity (PIMs) [ 21 , 22 , 23 ], covalent triazine-based frameworks (CTFs) [ 24 , 25 , 26 , 27 , 28 ], and hypercrosslinked polymers (HCPs) [ 29 , 30 , 31 , 32 ].…”

Cellulose stabilized Fe3O4and carboxylate‐imidazole and Co‐based MOF growth as an exceptional catalyst for the Knoevenagel reaction

“…Knoevenagel reaction is accomplished via the condensation of the carbonyl compounds and activated methylene linkages catalyzed by weak bases and acids to form unsaturated compounds . This condensation reaction has led to the production of significant organic intermediates that are adjustable to different synthetic transformations and biologically significant compounds such as heterocycles, carbohydrates and drugs .…”