Issue 11, 2008

Spherocylindrical coacervate core micelles formed by a supramolecular coordination polymer and a diblock copolymer

Abstract

We investigated the hierarchical structure of complex coacervate core micelles formed by mixing a supramolecular coordination polymer and a diblock copolymer. Cryogenic transmission electron microscopy (cryo-TEM) on those systems was only possible for very dilute samples and suggested the existence of wormlike micelles or strings of spherical micelles (Y. Yan, N. A. M. Besseling, A. de Keizer, R. Fokkink, M. Drechsler and M. A. Cohen Stuart, J. Phys. Chem. B 2007, 111, 11662). Using small-angle X-ray scattering (SAXS) we investigated those mixtures with a concentration of up to 0.6 vol%. Depending on the charge ratio and the concentration the above mixtures was proven to build spherocylindrical objects of different sizes. In the case of charge neutrality spherical micelles are found. Thus, we confirmed by SAXS experiments that the structures seen by cryo-TEM indeed exist in solution.

Graphical abstract: Spherocylindrical coacervate core micelles formed by a supramolecular coordination polymer and a diblock copolymer

Article information

Article type
Paper
Submitted
14 May 2008
Accepted
21 Jul 2008
First published
10 Sep 2008

Soft Matter, 2008,4, 2207-2212

Spherocylindrical coacervate core micelles formed by a supramolecular coordination polymer and a diblock copolymer

Y. Yan, L. Harnau, N. A. M. Besseling, A. de Keizer, M. Ballauff, S. Rosenfeldt and M. A. Cohen Stuart, Soft Matter, 2008, 4, 2207 DOI: 10.1039/B808151D

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