Thermal Roughening and Deroughening at Polymer Interfaces In Electrophoretic Deposition

Document Type

Article

Publication Date

2-8-2005

Department

Physics and Astronomy

School

Mathematics and Natural Sciences

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 similar to T-delta, with delta similar to (1)/(4), at low temperatures and roughening W-r proportional to T-v, with v similar to 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.

Publication Title

Macromolecules

Volume

38

Issue

3

First Page

992

Last Page

995

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