Nanoscale structure in colloid-polymer solutions

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Nanoscale structure in colloid-polymer solutions Eric M. Furst, Department of Chemical Engineering University of Delaware (ACS PRF 41237-G7) Depletion The nanometer scale structure of colloid-filled polymeric materials depends on complex interactions and correlations between the components. By measuring the motion of micrometer-size particles, we determined the transition between dilute and entangled regimes for a semiflexible polymer solution and identified the formation of polymer-depleted layers near the particle surfaces. Our results are in good agreement with recent theoretical models. For more information, see: “Colloid dynamics in semiflexible polymer solutions,” J. Y. Huh and E. M. Furst, Phys. Rev. E, 74, 031802 (2006). Entanglement