 |
|
The transitions of a grafted polymer chain between partial and full confinement are characterized using scaling theory and large-scale Monte Carlo simulations of self-avoiding walks on simple square and cubic lattices. This work examines the thermodynamic nature of the escape transition across different geometries. |
- Order of the Escape Transition in 2D: A study establishing that the escape transition of a polymer confined in a two-dimensional strip is a weak first-order phase transition. Using a Landau free energy approach, this research provides a description of the transition that reconciles simulation results with theoretical predictions.
"What is the Order of 2D Polymer Escape Transition?", Phys. Rev. E 76, 021108 (2007).
- Equilibrium Entry and Escape in 3D Nanotubes: An investigation of the "stem-flower" conformation and the resulting first-order jumps in the free energy landscape. This includes analyzing the critical distance required to "suck" a chain into a tube (Dragging) and the abrupt "popping out" of monomers when the chain is released (Escape).
"Dragging a Polymer Chain into a Nanotube and Subsequent Release", Macromolecules 41, 5890 (2008).