Tailoring the flow of soft glasses by soft additives

E. Zaccarelli*, C. Mayer, A. Asteriadi, C. N. Likos, F. Sciortino, J. Roovers, H. Iatrou, N. Hadjichristidis, P. Tartaglia, H. Löwen, D. Vlassopoulos

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

66 Scopus citations


We examine the vitrification and melting of asymmetric star polymer mixtures by combining rheological measurements with mode coupling theory. We identify two types of glassy states, a single glass, in which the small component is fluid in the glassy matrix of the big one, and a double glass, in which both components are vitrified. Addition of small-star polymers leads to melting of both glasses, and the melting curve has a nonmonotonic dependence on the star-star size ratio. The phenomenon opens new ways for externally steering the rheological behavior of soft matter systems.

Original languageEnglish (US)
Article number268301
JournalPhysical Review Letters
Issue number26
StatePublished - Dec 31 2005
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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