Crystal structure of highly concentrated, ionic microgel suspensions studied by neutron scattering.
- Gasser U Laboratory for Neutron Scattering, ETH Zurich & Paul Scherrer Institut, 5232 Villigen PSI, Switzerland. urs.gasser@psi.ch
- Sierra-Martin B
- Fernandez-Nieves A
- 2009-06-13
Published in:
- Physical review. E, Statistical, nonlinear, and soft matter physics. - 2009
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.
- Language
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- English
- Open access status
- green
- Identifiers
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- DOI 10.1103/PhysRevE.79.051403
- PMID 19518452
- Persistent URL
- https://sonar.ch/global/documents/191210
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