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Structural evidence of charge renormalization in semi-dilute solutions of highly charged polyelectrolytes

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The European Physical Journal B - Condensed Matter and Complex Systems Aims and scope Submit manuscript

Abstract:

We show experimentally that Manning counterion condensation also leads to a renormalization of the charge density at high concentrations of highly charged, flexible, hydrophilic polyelectrolytes. Investigations by small angle neutron and X-ray scattering of semi-dilute solutions of poly(acrylamide-co-sodium-2-acrylamido-2-methylpropane sulfonate) at different charge densities above the condensation threshold, show that the scattering function is invariant with the charge density.

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Authors and Affiliations

  1. LURE, CNRS-CEA-MESR, Université Paris-Sud, Bâtiment 209 D, 91405 Orsay Cedex, France, , , , , , FR

    W. Essafi

  2. Laboratoire de Physico-Chimie Macromoléculaire, CNRS-Paris VI-ESPCI, 10 rue Vauquelin, 75231 Paris, France, , , , , , FR

    F. Lafuma

  3. Laboratoire de Physique de la Matière Condensée (URA 792), CNRS-Collège de France, 11 place Marcelin-Berthelot, 75231 Paris, France, , , , , , FR

    C.E. Williams

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  1. W. Essafi
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  2. F. Lafuma
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  3. C.E. Williams
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Received 16 June 1998

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Essafi, W., Lafuma, F. & Williams, C. Structural evidence of charge renormalization in semi-dilute solutions of highly charged polyelectrolytes. Eur. Phys. J. B 9, 261–266 (1999). https://doi.org/10.1007/s100510050765

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  • DOI: https://doi.org/10.1007/s100510050765

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