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Structural Properties of Covalently Crosslinked Gels as Probed by Scattering Techniques

Published online by Cambridge University Press:  21 February 2011

Sauveur J. Canda,
F. Ilnai,
F. Schosseler and
J. Bastide
Sauveur J. Canda
Affiliation:
Laboratoire de Spectrométrie et d'Imagerie Ultrasonores, U.R.A. au C.N.R.S. n°851, Université Louis Pasteur, 4, rue Blaise Pascal, 67070
F. Ilnai
Affiliation:
Laboratoire de Spectrométrie et d'Imagerie Ultrasonores, U.R.A. au C.N.R.S. n°851, Université Louis Pasteur, 4, rue Blaise Pascal, 67070
F. Schosseler
Affiliation:
Institut Charles Sadron, 6,rue Boussingault, 67083 Strasbourg Cedex, France
J. Bastide
Affiliation:
Laboratoire de Spectrométrie et d'Imagerie Ultrasonores, U.R.A. au C.N.R.S. n°851, Université Louis Pasteur, 4, rue Blaise Pascal, 67070Institut Charles Sadron, 6,rue Boussingault, 67083 Strasbourg Cedex, FranceInstitute of Theoretical Physics, U.C.S.B., Santa Barbara, Ca, U.S.A.
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Abstract

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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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 177: Symposium V – Macromolecular Liquids , 1989, 3
Copyright
Copyright © Materials Research Society 1990

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References

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