Multiple shear-banding transitions in a supramolecular polymer solution

J. van der Gucht, M. Lemmers, W. Knoben, N.A.M. Besseling, M.P. Lettinga

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    We report on the nonlinear rheology of a reversible supramolecular polymer based on hydrogen bonding. The coupling between the flow-induced chain alignment and breakage and recombination of bonds between monomers leads to a very unusual flow behavior. Measured velocity profiles indicate three different shear-banding regimes upon increasing shear rate, each with different characteristics. While the first of these regimes has features of a mechanical instability, the second shear-banding regime is related to a shear-induced phase separation and the appearance of birefringent textures. The shear-induced phase itself becomes unstable at very high shear rates, giving rise to a third banding regime
    Original languageEnglish
    Pages (from-to)108301/1-108301/4
    JournalPhysical Review Letters
    Issue number10
    Publication statusPublished - 2006


    • wormlike micelles
    • rheology
    • dynamics
    • flow

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    van der Gucht, J., Lemmers, M., Knoben, W., Besseling, N. A. M., & Lettinga, M. P. (2006). Multiple shear-banding transitions in a supramolecular polymer solution. Physical Review Letters, 97(10), 108301/1-108301/4.