Phase separation in star-polymer-colloid mixtures.
We examine the demixing transition in star-polymer-colloid mixtures for star arm numbers f=2,6,16,32 and different star-polymer-colloid size ratios 0.18< or =q< or =0.50. Theoretically, we solve the thermodynamically self-consistent Rogers-Young integral equations for binary mixtures using three effective pair potentials obtained from direct molecular computer simulations. The numerical results show a spinodal instability. The demixing binodals are approximately calculated and found to be consistent with experimental observations.
Dzubiella
J
J
Institut für Theoretische Physik II, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany.
Jusufi
A
A
Likos
C N
CN
von Ferber
C
C
Löwen
H
H
Stellbrink
J
J
Allgaier
J
J
Richter
D
D
Schofield
A B
AB
Smith
P A
PA
Poon
W C
WC
Pusey
P N
PN