Logarithmic chain-exchange kinetics of diblock copolymer micelles.
We present a study of equilibrium chain-exchange kinetics of a well-defined model system for starlike polymeric micelles. The results show that the kinetics follows a logarithmic time dependence. The same feature has been confirmed for two other micellar systems. This is in sharp contrast to theoretical predictions and hints towards strongly coupled chain dynamics within the micellar cores induced by geometrical constraints.
Lund
Reidar
R
Institute for Solid State Research, Forschungszentrum Jülich, D-52425 Jülich, Germany. r.lund@fz-juelich.de
Willner
Lutz
L
Stellbrink
Jörg
J
Lindner
Peter
P
Richter
Dieter
D
D003903:Deuterium; D004121:Dimethyl Sulfoxide; D007700:Kinetics; D008823:Micelles; D009502:Neutrons; D011092:Polyethylene Glycols / Q000737:chemistry*; D012542:Scattering, Radiation; D012997:Solvents; D014867:Water
D008823:Micelles; D012997:Solvents; D014867:Water; D011092:Polyethylene Glycols; D003903:Deuterium; D004121:Dimethyl Sulfoxide