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Deuterium NMR lineshape and relaxation study of a hydrated cross-linked polymer

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Abstract

A combined study of2H nuclear magnetic resonance lineshape and spin-lattice and spin-spin relaxation times as functions of temperature and the amount of hydration water in a cross-linked copolymer of sucrose and 1,4-butadienol diglycidyl ether in the hydrogel phase is reported. The results show strong evidence that the onset of the relaxation mechanisms is driven by anomalous water molecule diffusion depending on both temperature and the hydration degree of the hydrogel. In addition, these results are correlated with the transitions observed by differential thermal analysis.

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Authors and Affiliations

  1. Departamento de Física, Universidad Nacional del Sur, Bahia Blanca, Argentina

    H. F. Azurmendi

  2. Facultad de Matemática, Astronomía y Física, Universidad Nacional de Córdoba, 5000, Còrdoba, Argentina

    M. E. Ramia & C. A. Martín

  3. Facultad de Ciencias Exactas Físicas y Naturales, Universidad Nacional de Còrdoba, Còrdoba, Argentina

    A. Fiñana

Authors
  1. H. F. Azurmendi
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  2. M. E. Ramia
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  3. A. Fiñana
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  4. C. A. Martín
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Azurmendi, H.F., Ramia, M.E., Fiñana, A. et al. Deuterium NMR lineshape and relaxation study of a hydrated cross-linked polymer. Appl. Magn. Reson. 22, 321–334 (2002). https://doi.org/10.1007/BF03166114

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  • DOI: https://doi.org/10.1007/BF03166114

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