Gasser, Urs Sierra-Martin, B. Fernandez-Nieves, A. 2009-05-12 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. application/pdf https://folia.unifr.ch/global/documents/301269 https://folia.unifr.ch/documents/301269/files/gasser_csh.pdf eng info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevE.79.051403 info:eu-repo/semantics/openAccess License undefined Physical Review. - 2009, vol. 79, no. 5, p. 051403 gels neutron diffraction polymer structure polymers suspensions info:eu-repo/classification/udc/53 Crystal structure of highly concentrated, ionic microgel suspensions studied by neutron scattering http://purl.org/coar/resource_type/c_6501