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Percolation model of interfacial effects in polymeric glasses

  • Mesoscopic and Nanoscale Systems
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Abstract

Recent observations using fluorophore probes of local dynamics in polymer films have provided new insight into the glass transition. Using a percolation model, we predict the local Tg in a polymer film, as a function of distance from a substrate or a free surface. Our predictions are in good agreement with the observed elevation of Tg near a substrate, whereas the observed reduction of Tg near a free surface is too strong to be accounted for by percolation effects.

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Authors and Affiliations

  1. Department of Chemistry, Dartmouth College, Hanover, NH, 03755, USA

    J.E.G. Lipson

  2. Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA

    S. T. Milner

Authors
  1. J.E.G. Lipson
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  2. S. T. Milner
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Correspondence to S. T. Milner.

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Lipson, J., Milner, S. Percolation model of interfacial effects in polymeric glasses. Eur. Phys. J. B 72, 133–137 (2009). https://doi.org/10.1140/epjb/e2009-00324-y

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  • DOI: https://doi.org/10.1140/epjb/e2009-00324-y

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