1. Synthesis of azo linked polymers by a diazotization-coupling reaction and its application for CO2 capture
- Author
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Narmadha Manoranjan and Seong Ihl Woo
- Subjects
chemistry.chemical_classification ,Condensation polymer ,General Chemical Engineering ,02 engineering and technology ,General Chemistry ,Polymer ,Microporous material ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Coupling reaction ,0104 chemical sciences ,chemistry.chemical_compound ,chemistry ,Polymer chemistry ,Imidazole ,Amine gas treating ,0210 nano-technology ,Selectivity ,Pyrrole - Abstract
Azo bridged, heterocyclic, microporous polymers were synthesized by a metal catalyst-free direct one-step coupling reaction of a diazotized amine group with the five-membered ring. The two polymers were synthesized by incorporating pyrrole and imidazole groups. These polymers are amorphous in nature and exhibited surface areas between the range 100–300 m2 g−1. The CO2 adsorption capacity was investigated and it was 3.5 mmol g−1 at 298 K at 1 bar. Meanwhile, the CO2/N2 selectivity of the polymers was measured between 20 and 41 and the interactions of the polymers with gas molecules are discussed.
- Published
- 2016
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