Study of crystal-to-crystal transition using ultra-low crosslinked microgels and Rheo-SANS
The interplay between softness, morphology and crystallization is one of the most challenging and fascinating problem that both theoreticians and experimentalists are dealing with in the last decades. Recently it has been shown that colloid suspensions, as well as microgel suspensions (soft and deformable object) present a two-step crystallization, mediated by a liquid phase. At the same time, it has been shown that star polymers, polymer chains tethered to a central microscopic core, are able to evolve from a crystalline lattice to another without the liquid phase mediated step. We propose to use ultra-low crosslinked (ULC) microgels, the softest microgels that can be obtained with precipitation polymerization, to probe if the presence of the liquid-mediated crystallization depends on the softness or on the morphology of the object. We choose to use ULC since they are the link between regular microgels and star polymer: they are spherical as regular microgel but present strong interpenetration at high concentrations. Rheo-SANS, under oscillatory conditions in the vicinity of the glass transition of the ULC-microgels will probe the crystal to crystal transition.
Please note that you will need to login with your ILL credentials to download the data.
Download DataThe recommended format for citing this dataset in a research publication is in the following format:
Andrea Scotti; BOCHENEK Steffen; BRUGNONI Monia; PORCAR Lionel; RICHTERING Walter and TOLSON Luke. (2018). Study of crystal-to-crystal transition using ultra-low crosslinked microgels and Rheo-SANS. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-11-1890
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.