Journal article

Crystal structure of highly concentrated, ionic microgel suspensions studied by neutron scattering

  • Gasser, Urs Laboratory for Neutron Scattering, ETH Zurich - Paul Scherrer Institut, Villigen, Switzerland - Adolphe Merkle Institut, University of Fribourg, Switzerland
  • Sierra-Martin, B. School of Physics, Georgia Institute of Technology, Atlanta, Georgia, USA
  • Fernandez-Nieves, A. School of Physics, Georgia Institute of Technology, Atlanta, Georgia, USA
    12.05.2009
Published in:
  • Physical Review. - 2009, vol. 79, no. 5, p. 051403
English We present a neutron-scattering investigation of the crystal structure formed by pH-sensitive poly(2-vinylpyridine) microgel particles with 5 wt % of cross-linker. We focus on highly swollen particles and explore concentrations ranging from below close packing to well above close packing, where the particles are forced to shrink and/or interpenetrate. The crystal structure is found to be random hexagonal close packed, similar to the structure typically found in hard-sphere systems.
Faculty
Faculté des sciences
Department
Adolphe Merkle Institute
Language
  • English
Classification
Physics
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/301269
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