This title appears in the Scientific Report :
2011
Please use the identifier:
http://dx.doi.org/10.1088/0953-8984/23/23/234116 in citations.
Probing glassy states in binary mixtures of soft interpenetrable colloids
Probing glassy states in binary mixtures of soft interpenetrable colloids
We present experimental evidence confirming the recently established rich dynamic state diagram of asymmetric binary mixtures of soft colloidal spheres. These mixtures consist of glassy suspensions of large star polymers to which different small stars are added at varying concentrations. Using rheol...
Saved in:
Personal Name(s): | Stiakakis, E. |
---|---|
Erwin, B.M. / Vlassopoulos, D. / Cloitre, M. / Munam, A. / Gauthier, M. / Iatrou, H. / Hadjichristidis, N. | |
Contributing Institute: |
Weiche Materie; ICS-3 |
Published in: | Journal of physics / Condensed matter, 23 (2011) S. 234116 |
Imprint: |
Bristol
IOP Publ.
2011
|
Physical Description: |
234116 |
PubMed ID: |
21613695 |
DOI: |
10.1088/0953-8984/23/23/234116 |
Document Type: |
Journal Article |
Research Program: |
Toolbox for Directed and Controlled Self-Assembly of nano-Colloids BioSoft: Makromolekulare Systeme und biologische Informationsverarbeitung |
Series Title: |
Journal of Physics: Condensed Matter
23 |
Subject (ZB): | |
Publikationsportal JuSER |
We present experimental evidence confirming the recently established rich dynamic state diagram of asymmetric binary mixtures of soft colloidal spheres. These mixtures consist of glassy suspensions of large star polymers to which different small stars are added at varying concentrations. Using rheology and dynamic light scattering measurements along with a simple phenomenological analysis, we show the existence of re-entrance and multiple glassy states, which exhibit distinct features. Cooperative diffusion, as a probe for star arm interpenetration, is proven to be sensitive to the formation of the liquid pockets which signal the melting of the large-star-glass upon addition of small stars. These results provide ample opportunities for tailoring the properties of soft colloidal glasses. |