Form factor and structure factor analysis of microgels with tailored density gradient.
Core-shell microgels with tailored softness and core-to-shell ratio are interesting candidates for new soft quasicrystals (QCs). Poly (N-isopropyl acrylamide) microgel is a well-known colloidal system which exhibit peculiar property called volume phase transition. PNIPAM undergoes a temperature-induced volume phase transition (VPT) in water at around 32°C and hence the particle volume fraction can be tuned by temperature. Moreover, the interaction potential of microgels changes from repulsive to attractive at VPTT. We make PNIPAM microgel with a core of highly crosslinked PNIPAM and fuzzy soft shell of less crosslinked PNIPAM chains. A deep understanding of the fuzziness of the shell and density profile of the core and shell is important in designing the QCs. The core-to-shell ratio and temperature can be used as tuneable parameters for the phase transition of the microgels. With SANS, we would like to study the form factor, the structure factor and density profile of PNIPAM particles of different core-shell ratios below and above VPTT to check the effect of fuzzy shell on the interaction between the particles and phase changes.
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The recommended format for citing this dataset in a research publication is in the following format:
JATHAVEDAN Kiran; HILDEBRANDT Marco; KARG Matthias and PREVOST Sylvain. (2021). Form factor and structure factor analysis of microgels with tailored density gradient.. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-11-2027
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This data is not yet public
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