SANS observations on weakly flocculated dispersions

N. Mischenko, G. Ourieva, K. Mortensen, H. Reynaers, J. Mewis

    Research output: Contribution to journalJournal articleResearch


    Structural changes occurring in colloidal dispersions of poly-(methyl metacrylate) (PMMA) particles, sterically stabilized with poly-(12-hydroxystearic acid) (PHSA), while varying the solvent quality, temperature and shear rate, are investigated by small-angle neutron scattering (SANS). For a moderately concentrated dispersion in a marginal solvent the transition on cooling from the effective stability to a weak attraction is monitored, The degree of attraction is determined in the framework of the sticky spheres model (SSM), SANS and rheological results are correlated.
    Original languageEnglish
    JournalPhysica B: Condensed Matter
    Pages (from-to)1024-1026
    Publication statusPublished - 1997

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