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Spinodal fractals

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Trends in Colloid and Interface Science VII

Part of the book series: Progress in Colloid & Polymer Science ((PROGCOLLOID,volume 93))

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Abstract

We report for the first time the observation of a finite wave vector peak in the scattering pattern from a dense solution of aggregating colloids. Measurements have been conducted under isopycnic conditions and at various monomer concentrations. The scattered intensity S (q) scales according to a universal law, S(q/q m ), in close analogy with spinodal decomposition dynamics (q m is the position of the scattered peak). Although for spinodal decomposition, d is equal to 3, here, we measured d=d f , the fractal dimension of the colloidal clusters. We also observed that S(q) attains a terminal shape. The position of the peak in this terminal phase scales linearly with the initial monomer concentration, as predicted by a simple model.

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Authors and Affiliations

  1. Dipartimento di Fisica, Università degli studi di Milano, Via Celoria 16, 20133, Milano, Italia

    M. Carpineti & M. Giglio

Authors
  1. M. Carpineti
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  2. M. Giglio
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P. Laggner O. Glatter

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© 1993 Dr. Dietrich Steinkopff Verlag GmbH & Co. KG

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Carpineti, M., Giglio, M. (1993). Spinodal fractals. In: Laggner, P., Glatter, O. (eds) Trends in Colloid and Interface Science VII. Progress in Colloid & Polymer Science, vol 93. Steinkopff. https://doi.org/10.1007/BFb0118465

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  • DOI: https://doi.org/10.1007/BFb0118465

  • Published:

  • Publisher Name: Steinkopff

  • Print ISBN: 978-3-7985-0955-9

  • Online ISBN: 978-3-7985-1676-2

  • eBook Packages: Springer Book Archive

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