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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, 67070 Institut Charles Sadron, 6,rue Boussingault, 67083 Strasbourg Cedex, France Institute 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.

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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