Volume 47, Number 3, August I 1999
|Page(s)||391 - 397|
|Section||Interdisciplinary physics and related areas of science and technology|
|Published online||01 September 2002|
Micellar morphologies of charged diblock-copolymers
Max-Planck-Institut für Kolloid-und Grenzflächenforschung Kantstr. 55, 14513 Teltow, Germany MPI of Colloids and Interfaces - Am Mühlenberg, 14424 Potsdam, Germany
Accepted: 28 May 1999
Using scaling arguments, we consider dilute solutions of diblock-copolymers consisting of a strongly hydrophobic block and a charged block in an aqueous salt solution. At low salt, the electrostatic repulsion of the charged block dominates and we find a transition from spherical to cylindrical micelles as the salt concentration increases. At high salt, the elastic energy of the hydrophobic core dominates and bilayers are favored. At intermediate salt concentrations cylindrical, spherical, and bilayer morphologies coexist, suggesting the formation of degenerate, multiply connected structures. The endcap energy of cylindrical micelles is high, suggesting the formation of long or toroidal cylindrical micelles.
PACS: 82.70.-y – Disperse systems / 61.25.Hq – Macromolecular and polymer solutions; polymer melts; swelling / 64.70.-p – Specific phase transitions
© EDP Sciences, 1999
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.