Light scattering and gel inhomogeneities

A. Moussaïd, J.J.M. Slot, J.G.H. Joosten

    Research output: Contribution to journalArticleAcademicpeer-review

    4 Citations (Scopus)

    Abstract

    Light Scattering results on polyacrylamide networks show that the scattered intensity changes as different positions of a sample are probed. The scattered intensity from gels, measured by averaging through many different positions, was found to be much larger than the intensity scattered by the equivalent polymer solution. This excess arises from the frozen-in fluctuations due to the presence of cross-links. This additional structure in gels can be enhanced or reduced with conditions of preparation. Modeling a gel by a random network of springs is presented. The resulting scattering properties mimic real gel behavior.
    Original languageEnglish
    Pages (from-to)43-54
    JournalInternational Journal of Polymer Analysis and Characterization
    Volume2
    Issue number1
    DOIs
    Publication statusPublished - 1995

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