Issue 43, 2007
From the journal:

Chemical Communications

Redox-controlled micellization of organometallic block copolymers†

David A. Rider,a   Mitchell A. Winnik*a  and  Ian Manners*b  

* Corresponding authors

a Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada
E-mail: mwinnik@chem.utoronto.ca
Fax: +1 416 978 0541
Tel: +1 416 978 6495

b School of Chemistry, University of Bristol, Bristol, England
E-mail: ian.manners@bristol.ac.uk
Fax: +44(0) 117 929 0509
Tel: +44(0) 117 928 7650

Abstract

Polystyrene-block-polyferrocenylsilane (PS-b-PFS) diblock copolymers were stoichiometrically oxidized in solution using salts of the one-electron oxidant tris(4-bromophenyl)ammoniumyl. Due to a redox-induced polarity change for the PFS block, self-assembly into well-defined spherical micelles occurs. The micelles are composed of a core of partially oxidized PFS segments and a corona of PS. When the micellar solutions were treated with the reducing agent decamethylcobaltocene, the spherical micelles disassemble and regenerate unassociated and pristine PS-b-PFS free chains.

Graphical abstract: Redox-controlled micellization of organometallic block copolymers

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Article information

DOI
https://doi.org/10.1039/B704200K
Article type
Communication
Submitted
19 Mar 2007
Accepted
16 Jul 2007
First published
03 Sep 2007

Chem. Commun., 2007, 4483-4485

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Redox-controlled micellization of organometallic block copolymers

D. A. Rider, M. A. Winnik and I. Manners, Chem. Commun., 2007, 4483 DOI: 10.1039/B704200K

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