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Structural Properties of Covalently Crosslinked Gels as Probed by Scattering Techniques

  • Sauveur J. Canda (a1), F. Ilnai (a1), F. Schosseler (a2) and J. Bastide (a1) (a2) (a3)

This paper reviews some characteristic results obtained by scattering techniques in two sorts of swollen covalently crosslinked networks : neutral networks swollen by a good solvent and weakly ionized gels. For neutral networks swollen at saturation, the local conformation of the chains was found to be the same as in semi-dilute solutions, whereas some concentration inhomogeneities are observed at larger scale. Ionized gels are characterized by a peak of the structure factor and the absence of long range stationary concentration fluctuations at the concentration of preparation of the gels.

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