Abstract
The adhesion between a polymer melt and substrate is studied in the presence of chemically attached chains on the substrate surface. Extensive molecular dynamics simulations have been carried out to study the effect of temperature, tethered chain density [formula presented] tethered chain length [formula presented] and tensile pull velocity [formula presented] on the adhesive failure mechanisms of pullout and/or scission of the tethered chains. We observe a crossover from pure chain pullout to chain scission as [formula presented] is increased. The value of [formula presented] for which this crossover begins approaches the bulk entanglement length [formula presented] as the temperature is lowered. © 2001 The American Physical Society.
| Original language | English |
|---|---|
| Pages (from-to) | 4 |
| Number of pages | 1 |
| Journal | Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics |
| Volume | 64 |
| Issue number | 5 |
| DOIs | |
| State | Published - Jan 1 2001 |
| Externally published | Yes |
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