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
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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 et de médecine
- Department
- AMI - Soft Nanoscience
- Language
-
- English
- Classification
- Physics
- License
- License undefined
- Identifiers
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- RERO DOC 13226
- DOI 10.1103/PhysRevE.79.051403
- Persistent URL
- https://folia.unifr.ch/unifr/documents/301269
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