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Features of the dissociation of polyelectrolyte complexes in concentrated salt solutions

  • Polyelectrolytes
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Abstract

A systematic study of the phase behavior of products resulting from the interaction of oligomeric and high-molecular-mass styrenesulfonate anions with oligomeric and polymeric N-ethyl-4-vinylpyridinium cations in aqueous salt solutions was conducted for the first time. Unexpected and considerable differences in the stability of the resulting asymmetric polyelectrolyte complexes composed of a long cationic or anionic matrix and anionic (respectively cationic) oligomers of the same degree of polymerization were revealed. A mechanism of this phenomenon based on the difference in the conformational behavior of interacting polyions in concentrated salt solutions was suggested.

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Authors and Affiliations

  1. Faculty of Chemistry, Moscow State University, Moscow, 119991, Russia

    V. V. Parashchuk & V. A. Izumrudov

  2. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow, 119991, Russia

    V. A. Izumrudov

Authors
  1. V. V. Parashchuk
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  2. V. A. Izumrudov
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Correspondence to V. A. Izumrudov.

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Original Russian Text © V.V. Parashchuk, V.A. Izumrudov, 2015, published in Vysokomolekulyarnye Soedineniya. Ser. A, 2015, Vol. 57, No. 1, pp. 27–35.

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Parashchuk, V.V., Izumrudov, V.A. Features of the dissociation of polyelectrolyte complexes in concentrated salt solutions. Polym. Sci. Ser. A 57, 24–32 (2015). https://doi.org/10.1134/S0965545X15010083

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  • DOI: https://doi.org/10.1134/S0965545X15010083

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