Journal article

Self-organization on multiple length scales in "hairy rod"-coil block copolymer supramolecular complexes

  • Hammond, Matthew R. Department of Physics and Fribourg Center for Nanomaterials, University of Fribourg, Switzerland
  • Klok, Harm-Anton École Polytechnique Federale de Lausanne, Institut des Matériaux, Laboratoire des Polymères, Switzerland
  • Mezzenga, Raffaele Nestlé Research Center, Lausanne, Switzerland
    11.12.2007
Published in:
  • Macromolecular Rapid Communications. - 2008, vol. 29, no. 4, p. 299-303
English A peptide-synthetic hybrid block copolymer, poly(ethylene oxide)-block-poly(L-glutamic acid), is shown to form supramolecular complexes with primary alkylamines of varying alkyl chain lengths (8 to 18 methylene units) in organic solvents via acid-base proton transfer and subsequent ionic bonding. The peptidic block being in the α-helical conformation, these materials behave as coil-"hairy rod" block copolymers, and show hierarchically self-organized nanostructures in the solid state. X-ray scattering measurements show mesomorphic behavior at the length scales of both the overall block copolymer and the polypeptide-alkylammonium complex.
Faculty
Faculté des sciences et de médecine
Department
Département de Physique
Language
  • English
Classification
Chemistry
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/300785
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