Cyclophane-based two-dimensional polymer formed by an interfacial click reaction

Indranil Roy, Austin M. Evans, Partha Jyoti Das, Mohamed Ateia, Matthew R. Ryder, Leighton O. Jones, Masoud Kazem-Rostami, Subhadip Goswami, Yassine Beldjoudi, Dengke Shen, George C. Schatz, Joseph T. Hupp, William R. Dichtel, J. Fraser Stoddart*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Two-dimensional polymers (2DPs) that incorporate molecular hosts offer a distinctive combination of properties, including covalent connectivity, structural regularity, chemical stability, permanent porosity, and molecular recognition. These features make these topologically planar macromolecular sheets promising in relation to applications, including those that appear in sensors, organic electronics, and nanofiltration membranes. Here, we use copper-catalyzed azide-alkyne click chemistry to construct a cyclophane-based 2DP at a liquid-liquid interface by polymerizing a bisazide-functionalized tetracationic cyclophane monomer with a 1,3,5-triethynylbenzene node. The 2DP prepared by employing this strategy is observed to be crystalline porous sheets by a combination of synchrotron X-ray diffraction, transmission electron microscopy, electron diffraction, and nitrogen porosimetry. When employed as the active layer in nanofiltration membranes, this 2DP exhibits excellent rejection performance of a dye, Brilliant Blue G, with 99% of the dye being removed after each cycle. Our findings could lead to the broad application of interfacial click polymerizations to produce 2DPs.

Original languageEnglish (US)
Article number100806
JournalCell Reports Physical Science
Volume3
Issue number4
DOIs
StatePublished - Apr 20 2022

Keywords

  • CuAAC polymerization
  • cyclophane
  • cyclophane-based polymer
  • host molecule
  • interfacial click reaction
  • interfacial polymerization
  • membrane
  • nanofiltration
  • two-dimensional polymers
  • water purification

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Materials Science(all)
  • Chemistry(all)
  • Energy(all)
  • Engineering(all)

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