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Multiresponsive Reversible Gels Based on Charge-Driven Assembly

Authors

  • Marc Lemmers,

    1. Laboratory of Physical Chemistry and Colloid Science, Wageningen University, Dreijenplein 6, 6703 HB, Wageningen (The Netherlands), Fax: (+31) 317-483-777
    2. Dutch Polymer Institute, Eindhoven (The Netherlands)
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  • Joris Sprakel Dr.,

    1. School of Engineering and Applied Sciences, Department of Physics, Harvard University, Cambridge, MA 02138 (USA)
    2. Dutch Polymer Institute, Eindhoven (The Netherlands)
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  • Ilja K. Voets Dr.,

    1. Institut Adolphe Merkle, Université de Fribourg (Switzerland)
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  • Jasper van der Gucht Dr.,

    1. Laboratory of Physical Chemistry and Colloid Science, Wageningen University, Dreijenplein 6, 6703 HB, Wageningen (The Netherlands), Fax: (+31) 317-483-777
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  • Martien A. Cohen Stuart Prof. Dr.

    1. Laboratory of Physical Chemistry and Colloid Science, Wageningen University, Dreijenplein 6, 6703 HB, Wageningen (The Netherlands), Fax: (+31) 317-483-777
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  • We acknowledge Dr. A. T. M. Marcelis for his help in the synthesis of the triblock copolymer, Prof. Armes for providing a detailed protocol for the triblock copolymer synthesis, and Prof. Detrembleur for doing the SEC analysis. This research is funded by the Dutch Polymer Institute (DPI), project no 657. I.K.V. is supported by a European Marie Curie Fellowship (FP7-PEOPLE-IEF-2008, Contract No. 236723) and by the Adolphe Merkle Foundation.

Abstract

original image

Linked in? Coassembly of an ABA triblock copolymer with charged end blocks and an oppositely charged polyelectrolyte yields gels that respond to changes in concentration, temperature, ionic strength, pH value, and charge composition. Above the critical gel concentration, the triblock copolymers bridge micelles, forming a sample-spanning transient network of interconnected micelles.

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