Thermal Roughening and Deroughening at Polymer Interfaces in Electrophoretic Deposition

Abstract

Thermal scaling and relaxation of the interface width in an electrophoretic deposition of polymer chains is examined by a three-dimensional Monte Carlo simulation on a discrete lattice. Variation of the equilibrium interface width $W_r$ with the temperature $T$ shows deroughening $W_r\propto T^{-\delta }$, with $\delta \sim 1/4$, at low temperatures and roughening $W_r\propto T^{\nu }$, with $\nu \sim 0.4$ at high temperatures. The roughening-deroughening transition temperature $T_t$ increases with longer chain lengths and is reduced by using the slower segmental dynamics.

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References in corpus (3)

• Roughening, deroughening, and nonuniversal scaling of the interface width in electrophoretic deposition of polymer chains
• Interface relaxation in electrophoretic deposition of polymer chains: Effects of segmental dynamics, molecular weight, and field
• Density and conformation with relaxed substrate, bulk, and interface electrophoretic deposition of polymer chains