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Issue 43, 2014
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Micro-viscosity of liquid oil confined in colloidal fat crystal networks

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Abstract

Molecular rotors may be utilized as non-invasive, non-disruptive and highly sensitive alternatives to conventional measures of bulk viscosity when the oil is entrained in a colloidal fat crystal network. Oil viscosity changes based on the molecular confinement of the oil, which is dependent on its molecular volume. Changes in micro-viscosity were not dependent on the solids content, but instead were strongly dependent on the box-counting fractal dimension in high-space filling colloidal fat crystal networks (i.e., D > 1.89). A bulk oil viscosity is often an overestimation of the actual viscosity of the entrained oil and may not be appropriate when predicting diffusion in multi-phase materials.

Graphical abstract: Micro-viscosity of liquid oil confined in colloidal fat crystal networks

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Publication details

The article was received on 23 Jul 2014, accepted on 10 Sep 2014 and first published on 17 Sep 2014


Article type: Paper
DOI: 10.1039/C4SM01632G
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Citation: Soft Matter, 2014,10, 8652-8658

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    Micro-viscosity of liquid oil confined in colloidal fat crystal networks

    H. Du, C. Kim, M. G. Corradini, R. D. Ludescher and M. A. Rogers, Soft Matter, 2014, 10, 8652
    DOI: 10.1039/C4SM01632G

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