Spatial distribution of core monomers in acrylamide-based core-shell microgels with linear swelling behaviour.

ABSTRACT: The peculiar linear temperature-dependent swelling of core-shell microgels has been conjectured to be linked to the core-shell architecture combining materials of different transition temperatures. Here the structure of pNIPMAM-core and pNNPAM-shell microgels in water is studied as a function of temperature using small-angle neutron scattering with selective deuteration. Photon correlation spectroscopy is used to scrutinize the swelling behaviour of the colloidal particles and reveals linear swelling. Moreover, these experiments are also employed to check the influence of deuteration on swelling. Using a form-free multi-shell reverse Monte Carlo approach, the small-angle scattering data are converted into radial monomer density profiles. The comparison of 'core-only' particles consisting o

SUBMITTER: Cors M 

PROVIDER: S-EPMC6761195 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature