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Amide Functionalized Microporous Organic Polymer (Am-MOP) for Selective CO2 Sorption and Catalysis

Suresh, Venkata M and Bonakala, Satyanarayana and Atreya, Hanudatta S and Balasubramanian, Sundaram and Maji, Tapas Kumar (2014) Amide Functionalized Microporous Organic Polymer (Am-MOP) for Selective CO2 Sorption and Catalysis. In: ACS APPLIED MATERIALS & INTERFACES, 6 (7). pp. 4630-4637.

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Official URL: http://dx.doi.org/10.1021/am500057z

Abstract

We report the design and synthesis of an amide functionalized microporous organic polymer (Am-MOP) prepared from trimesic acid and p-phenylenediamine using thionyl chloride as a reagent. Polar amide (CONH) functional groups act as a linking unit between the node and spacer and constitute the pore wall of the continuous polymeric network. The strong covalent bonds between the building blocks (trimesic acid and p-phenylenediamine) through amide bond linkages provide high thermal and chemical stability to Am-MOP. The presence of a highly polar pore surface allows selective CO2 uptake at 195 K over other gases such as N-2, Ar, and O-2. The CO2 molecule interacts with amide functional groups via Lewis acid base type interactions as demonstrated through DFT calculations. Furthermore, for the first time Am-MOP with basic functional groups has been exploited for the Knoevenagel condensation reaction between aldehydes and active methylene compounds. Availability of a large number of catalytic sites per volume and confined microporosity gives enhanced catalytic efficiency and high selectivity for small substrate molecules.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to the AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
Keywords: porous organic polymer; microporosity; polar pore surface; CO2 adsorption; Knoevenagel condensation; catalysis
Department/Centre: Division of Chemical Sciences > NMR Research Centre (Formerly Sophisticated Instruments Facility)
Depositing User: Id for Latest eprints
Date Deposited: 17 Jun 2014 11:00
Last Modified: 17 Jun 2014 11:00
URI: http://eprints.iisc.ac.in/id/eprint/49182

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