| Issue |
EPL
Volume 95, Number 4, August 2011
|
|
|---|---|---|
| Article Number | 46001 | |
| Number of page(s) | 5 | |
| Section | Condensed Matter: Structural, Mechanical and Thermal Properties | |
| DOI | https://doi.org/10.1209/0295-5075/95/46001 | |
| Published online | 26 July 2011 | |
Dynamics of polymers across an interface
1
Department of Chemistry, Clemson University - Clemson, SC 29634, USA
2
Sandia National Laboratories - Albuquerque, NM 87185, USA
Received:
11
January
2011
Accepted:
26
June
2011
The migration of polymers across an interface as welding and self-healing of polymer layers takes place, is in the core of polymer-based devices. Using large-scale molecular-dynamics simulations the motion of polymer chains across an interface has been investigated. Unlike self-diffusion of polymers in melts where the early stages of diffusion are characterized by the reptation-like motion of chains in constraining tube formed by neighboring molecules, we find that interdiffusion across an interface is dominated by motion of the chain ends.
PACS: 61.25.hk – Polymer melts and blends / 82.35.Gh – Polymers on surfaces; adhesion / 83.10.Mj – Molecular dynamics, Brownian dynamics
© EPLA, 2011
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