Title

Nonuniversal scaling and conformational crossover of polymer chains in an electrophoretic deposition

Document Type

Article

Publication Date

10-13-1997

Department

Physics and Astronomy

Abstract

A computer simulation model of electrodeposition of polymer chains on an impenetrable wall is used to evaluate the power-law scaling exponents (nu(x(y))) for the longitudinal and transverse spread, R-gx(y) similar to Lc(nu x(y)); we find that the exponents nu(x(y)) depend on the field strength, i.e., they are nonuniversal. A conformational crossover is observed for the transverse spread from the bulk with nu(y) similar or equal to 1/3-2/3 to the wall with nu(y) similar or equal to 2/3-1. A similar crossover also occurs for the longitudinal component of R-g but with an opposite trend, i.e., magnitude of nu(x) is larger in bulk than at the wall.

Publication Title

PHYSICAL REVIEW LETTERS

Volume

79

Issue

15

First Page

2903

Last Page

2906