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Issue 8, 2008
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Shear banding and rheochaos in associative polymer networks

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Abstract

We present experimental evidence of an instability in the shear flow of transient networks formed by telechelic associative polymers. Velocimetry experiments show the formation of shear bands, following a complex pattern upon increasing the overall shear rate. The chaotic nature of the stress response in transient flow is indicative of spatiotemporal fluctuations of the banded structure. This is supported by time-resolved velocimetry measurements.

Graphical abstract: Shear banding and rheochaos in associative polymer networks

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Publication details

The article was received on 22 Feb 2008, accepted on 14 Apr 2008 and first published on 20 Jun 2008


Article type: Paper
DOI: 10.1039/B803085E
Citation: Soft Matter, 2008,4, 1696-1705
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    Shear banding and rheochaos in associative polymer networks

    J. Sprakel, E. Spruijt, M. A. Cohen Stuart, N. A. M. Besseling, M. P. Lettinga and J. van der Gucht, Soft Matter, 2008, 4, 1696
    DOI: 10.1039/B803085E

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