A new route to porous monolithic organic frameworks via cyclotrimerization

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Marcus Rose - , TUD Dresden University of Technology (Author)
  • Nicole Klein - , TUD Dresden University of Technology (Author)
  • Irena Senkovska - , Chair of Inorganic Chemistry I (Author)
  • Christian Schrage - , TUD Dresden University of Technology (Author)
  • Philipp Wollmann - , Chair of Electrochemistry (Author)
  • Winfried Böhlmann - , Leipzig University (Author)
  • Bertram Böhringer - , Bluecher GmbH (Author)
  • Sven Fichtner - , Adsor-Tech GmbH (Author)
  • Stefan Kaskel - , Chair of Inorganic Chemistry I (Author)

Abstract

Cyclotrimerization of bifunctional acetyl compounds is used to obtain highly porous organic frameworks. Syntheses in solution induced by silicon tetrachloride result in highly disperse powders while syntheses in molten 4-toluene sulfonic acid result in polymeric monoliths with a hierarchical pore structure containing micro- and macropores allowing for direct impregnation of textiles with a porous polymer. The materials show specific BET surface areas up to 895 m2 g-1 and large pore volume (1.99 cm3 g-1) combined with a highly hydrophobic character. The amorphous materials are thermally stable below 300 °C in air and show no decomposition effects in aqueous environment. These outstanding properties in combination with the opportunity to generate shapes of any kind desired for an application render the materials as highly promising for application in air filtration systems and individual protection, as well as gas storage and separation.

Details

Original languageEnglish
Pages (from-to)711-716
Number of pages6
JournalJournal of materials chemistry
Volume21
Issue number3
Publication statusPublished - 21 Jan 2011
Peer-reviewedYes

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