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Synthesis, CO2 Adsorption and Catalytic Properties of Porphyrin-Pyromellitic Dianhydride Based Porous Polymers

Authors
  • Fathalla, Maher1, 2
  • 1 Islamic University of Madinah, Madinah, 170, Saudi Arabia , Madinah (Saudi Arabia)
  • 2 Zagazig University, Zagazig, 44519, Egypt , Zagazig (Egypt)
Type
Published Article
Journal
Macromolecular Research
Publisher
The Polymer Society of Korea
Publication Date
Apr 24, 2021
Volume
29
Issue
4
Pages
321–326
Identifiers
DOI: 10.1007/s13233-021-9037-0
Source
Springer Nature
Keywords
License
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Abstract

The synthesis, characterization and CO2 uptake tendency of a new porous organic polymer (POP) based on porphyrin-pyromellitic dianhyderide is enclosed. The reported porphyrin POP was achieved by exploiting the condensation reaction between tetraaminophenylporphyrin (TAPP) with benzenetetracarboxylic (pyromellitic) diahhydride in dry dimethylforamide (DMF). The structure of the resulting polymer was confirmed by FT-IR as well as solid state 13C cross-polarization magic angle spinning (CP/MAS) NMR studies. In addition, the post-synthetic metallation of the free-base porphyrin macrocycles of the resulting POP with either Zn or Mn metals afforded the metallo-porphyrin POP analogues in excellent yields. The morphology of the reported porphyrin POPs were investigated by scanning electron microscopy (SEM) which demonstrated the porosity of the resulting POPs. Furthermore, CO2 adsorption capabilities of the synthesized POPs were evaluated and Brunauer-Emmett-Teller (BET) surface area was found to be 542, 597 and 828 m2/g for free-base, Zn- and MnIII-POP, respectively. Finally, MnIII-POP was found to be an effective catalyst for the selective epoxidation of styrene to the corresponding epoxide.

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