Τίτλος:
Tailoring the Flow of Soft Glasses by Soft Additives
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
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. © 2005 The American Physical Society.
Συγγραφείς:
E. Zaccarelli
C. Mayer
A. Asteriadi
C. N. Likos
F. Sciortino
J. Roovers
H. Iatrou
N. Hadjichristidis
P. Tartaglia
H. Löwen
D. Vlassopoulos
Περιοδικό:
Physical Review and Physical Review Letters Index
Εκδότης:
American Physical Society (APS)
Λέξεις-κλειδιά:
Glassy states; nonmonotonic, Additives; Polymers; Rheology, Glass, glass; polymer, chemical model; chemistry; computer simulation; microfluidics; phase transition; procedures; viscosity, Computer Simulation; Glass; Microfluidics; Models, Chemical; Phase Transition; Polymers; Viscosity
Κύρια θεματική κατηγορία:
Θετικές Επιστήμες
DOI:
10.1103/physrevlett.95.268301
