Percolation of immobile domains in supercooled thin polymeric films

A.R.C. Baljon, J.G.J.E. Billen, R. Khare

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Abstract

The authors present an analysis of heterogeneous dynamics in molecular dynamics simulations of a polymeric film supported by an absorbing surface. Using a bead-spring model for polymers, we show that slow, immobile beads occur throughout the film, with the probability of their occurrence decreasing with distance from the substrate. Still, enough immobile beads are located near the free surface to cause them to percolate in the direction perpendicular to the substrate, at a temperature near the glass transition one. This result is consistent with a recent theoretical model of glass transition.
Original languageEnglish
Article number255701
Pages (from-to)255701-1/4
Number of pages4
JournalPhysical Review Letters
Volume93
Issue number25
DOIs
Publication statusPublished - 2004

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    Baljon, A. R. C., Billen, J. G. J. E., & Khare, R. (2004). Percolation of immobile domains in supercooled thin polymeric films. Physical Review Letters, 93(25), 255701-1/4. [255701]. https://doi.org/10.1103/PhysRevLett.93.255701