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A comparative study of two polyelectrolyte complexes

Authors

  • Oscar Valdés,

    1. Centro de Biomateriales, Universidad de La Habana, Ave. Universidad e/G y Ronda, CP 10400, Ciudad de La Habana, Cuba
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  • Larissa Alexandrova,

    1. Departamento de Reología, Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México
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  • Dionisio Zaldívar,

    1. Centro de Biomateriales, Universidad de La Habana, Ave. Universidad e/G y Ronda, CP 10400, Ciudad de La Habana, Cuba
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  • Issa Katime

    Corresponding author
    1. Grupo de Nuevos Materiales y Espectroscopia Supramolecular, Facultad de Ciencias y Tecnología, Campus de Leioa, España
    • Grupo de Nuevos Materiales y Espectroscopia Supramolecular, Facultad de Ciencias y Tecnología, Campus de Leioa, España
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Abstract

This study reports on the synthesis and characterization of interpenetrating polymeric network (IPN) and polyelectrolyte complexes (PEC) produced by ion-complex formation between natural and synthetic polymer bearing opposed charge. PEC of sodium alginate (NaAlg) and poly(acryloxyethyl-trimethylammonium chloride-co-2-hydroxyethyl methacrylate) (poly(Q-co-H)) were formed by addition of 2.0 wt % sodium alginate solution to 1.5 wt % poly(Q-co-H) solution, and by adding the poly(Q-co-H) solution to the NaAlg solution under magnetic agitation. The IPN were prepared using the sequential method with three different compositions, in which Q and H monomers were mixed in the 95/5 proportions in presence of NaAlg. The mixture was polymerized at 60°C using potassium persulfate as initiator. The characterizations of scaffolds were investigated by Fourier-transform infrared spectroscopy and thermogravimetric analysis. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

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