New Microporous Thiophene-Pyridine Functionalized Imine-Linked Polymer for Carbon-Dioxide Capture
- 5 Downloads
The synthesis, porosity and the capability for carbon dioxide gas-capture of functionalized thiophene- pyridine microporous imine-linked polymer synthesized via the Schiff base condensation reaction between (1,3,5-triformyl thienyl benzene) and 2,6-diaminopyridine is described. The structural formation of the polymer was successfully confirmed via 13C NMR (CP-MAS) and IR spectroscopy, and elemental analysis. The polymer has the good thermal stability up to 380°C, a non-defined aggregated particles morphology and amorphous nature. From the argon sorption isotherm at 87 K, the polymer revealed a moderate Brunauer–Emmett–Teller surface area (372 m2/g) and micro-size pores (~5 Å). The CO2 uptake was studied at 273 and 298 K to evaluate the polymer tendency for capturing CO2 from the surrounding atmosphere. At 298 K, the polymer has shown a reversible adsorption-desorption isotherm with significant uptake (11.4 wt %) at 1.0 atm. The binding energy of CO2 at zero gas coverage is 24 kJ/mol and decreased upon loading.
Unable to display preview. Download preview PDF.
- 1.S. Xu, B. Tan, and A. Parthiban, in Synthesis and Applications of Copolymers (Wiley, Hoboken, 2014), p. 125.Google Scholar
- 7.C. Diercks and O. Yaghi, Science 3, 355 (2017).Google Scholar
- 12.G. Zhu and H. Ren, in Porous Organic Frameworks: Design, Synthesis and Their Advanced Applications (Springer, Berlin; Heidelberg, 2015), p. 13.Google Scholar