Hollow microgel collapsed with hydrostatic pressure, a SANS study
Hydrostatic pressure can deswell regular microgels similarly to temperature. Here we propose to explore the effects of changes of hydrostatic pressure on the structure of hollow- and ultra-low crosslinked microgels. Hollow microgels possess a solvent filled cavity in their centre, which we can produce as both spherical or elliptical particles. Furthermore, we can implement a high number of charges in their polymeric networks. The ultra-low crosslinked microgels are microgels with the lowest number of crosslinks in their polymeric networks. To date, studies in the literature were limited to microgels with a more crosslinked core surrounded by a less dense polymeric shell. Here, we want to use D11 and the liquid pressure cell to investigate how changes in the hydrostatic pressure affect the structure of these hollow and ultra-low crosslinked microgels. In addition to static increase of the hydrostatic pressure we plan to apply pressure-jumps (0 to 300MPa) and probe the microgels architecture.
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Andrea Scotti; Leonardo Chiappisi; Judith E. Houston; PETRUNIN Alexander and RICHTERING Walter. (2021). Hollow microgel collapsed with hydrostatic pressure, a SANS study. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-11-2007
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