Sodium and pH responsive hydrogel formation by the supramolecular system calix[4]pyrrole derivative/tetramethylammonium cation

Chem Commun (Camb). 2011 Feb 21;47(7):2017-9. doi: 10.1039/c0cc04051g. Epub 2011 Jan 7.

Abstract

We report and rationalize the formation of gels, responsive to sodium cations or pH changes, in aqueous media by a supramolecular system constituted of an aryl extended calix[4]pyrrole receptor and the tetramethylammonium guest.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Calixarenes / chemistry*
  • Cations / chemistry
  • Hydrogel, Polyethylene Glycol Dimethacrylate / chemistry*
  • Hydrogen-Ion Concentration
  • Porphyrins / chemistry*
  • Quaternary Ammonium Compounds / chemistry*
  • Sodium / chemistry*

Substances

  • Cations
  • Porphyrins
  • Quaternary Ammonium Compounds
  • calix(4)pyrrole
  • Calixarenes
  • Hydrogel, Polyethylene Glycol Dimethacrylate
  • Sodium
  • tetramethylammonium