Web Release Date: March 19,
Supramolecular Self-Assembled Ni(II), Fe(II), and Co(II) ABA Triblock Copolymers
Laboratory of Macromolecular Chemistry and Nanoscience, Eindhoven University of Technology and Dutch Polymer Institute (DPI), P.O. Box 513, 5600 MB Eindhoven, The Netherlands; Unité CMAT and CERMIN, Université catholique de Louvain, Place L. Pasteur 1, 1348 Louvain-la-Neuve, Belgium; and Laboratory of Organic and Macromolecular Chemistry, Friedrich-Schiller-Universität Jena, Humboldtstr. 10, D-07743 Jena, Germany
Received August 21, 2007
Revised Manuscript Received January 7, 2008
Abstract:
The self-assembly of amphiphilic metallo-supramolecular A-b-B-b-A triblock copolymers containing a B block formed from a bisfunctional terpyridine monomer and an A block based on a monofunctional terpyridine polymer is described. These polymers have been prepared by a polycondensation approach, based on metal–ligand complexation, in which the molecular weight of the central B block has been controlled by the addition of a monofunctional chain-stopper A. Details for the preparation of the A-b-B-b-A triblock copolymers based on the tpy2Ni(II), tpy2Fe(II), and tpy2Co(II) connectivity are given. The influence of the different binding strength of Ni(II), Fe(II), and Co(II) metal ions with terpyridine ligands on the metallo-polycondensation reaction and on the micellization behavior of those materials was studied. Micelles of the obtained block copolymers were prepared and studied by DLS and cryo-TEM.
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