Journal
CHEMCATCHEM
Volume 8, Issue 19, Pages 3089-3098Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.201600840
Keywords
CO2 adsorption; heterogeneous catalysis; high surface area; multicomponent condensation; porous organic polymer
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Funding
- CSIR
- DST, New Delhi
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A new porous organic polymer PDVBTT-1 (poly-divinylbenzene-co-triallyloxytriazine) has been synthesized through radical co-polymerization utilizing two monomers, that is, divinylbenzene and 2,4,6-triallyloxy-1,3,5-triazine in the presence of AIBN (azobisisobutyronitrile) as a radical initiator under solvothermal conditions in the absence of any structure directing agent. The polymer has been characterized thoroughly by N-2 sorption, FTIR, UV/Vis, and solid-state C-13 cross-polarization magic angle spinning (CP MAS) NMR spectroscopy, field emission FE-SEM, high-resolution HR-TEM, and thermogravimetric/differential thermal analysis (TG/DTA). Owing to the considerably good surface area of 644 m(2)g(-1) and surface basic sites (1.10 mmolg(-1)), the material showed very good CO2 adsorption properties. Furthermore, the porous polymer showed good catalytic activity in the base-catalyzed, one-pot, multicomponent condensation reaction between various substituted aromatic aldehydes, malononitrile, and activated phenols such as 2-naphthol, resorcinol, etc., for the synthesis of 2-amino-chromenes in water and under solvent-free microwave irradiation conditions. This N-rich porous polymer is highly recyclable and thus it has potential for a wide range of base-catalyzed organic transformations in the future.
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