Supramolecular polymers generated from heterocomplementary monomers linked through multiple hydrogen-bonding arrays--formation, characterization, and properties

Chemistry. 2002 Mar 1;8(5):1227-44. doi: 10.1002/1521-3765(20020301)8:5<1227::aid-chem1227>3.0.co;2-0.

Abstract

Supramolecular polymers are described that are derived from the association of two homoditopic heterocomplementary monomers through sextuple hydrogen-bonding arrays. They form fibers and a variety of different materials depending on the conditions. The strong affinity of the DAD-DAD (D=donor, A=acceptor) hydrogen-bonding sites for double-faced cyanuric acid type wedges drives the supramolecular polymeric assembly in apolar and chlorinated organic solvents. The marked influence of stoichiometry, as well as end-capping and cross-linking agents upon fiber formation is revealed in solution and by electron microscopy (EM). The results further contribute to the development of a supramolecular polymer chemistry that comprises reversible polymers formed through recognition-controlled noncovalent connections between the molecular components. Such materials are, by nature, dynamic and present adaptive character in view of their ability to respond to external stimuli.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Chemical Phenomena
  • Chemistry, Physical
  • Crystallography, X-Ray
  • Hydrogen Bonding
  • Indicators and Reagents
  • Magnetic Resonance Spectroscopy
  • Microscopy, Electron
  • Models, Molecular
  • Polymers / chemical synthesis
  • Polymers / chemistry*
  • Temperature

Substances

  • Indicators and Reagents
  • Polymers