Nonuniversal Scaling and Conformational Crossover of Polymer Chains in an Electrophoretic Deposition

Authors

Grace M. Foo, National University of Singapore
Ras B. Pandey, University of Southern MississippiFollow

Document Type

Article

Publication Date

10-13-1997

Department

Physics and Astronomy

School

Mathematics and Natural Sciences

Abstract

A computer simulation model of electrodeposition of polymer chains on an impenetrable wall is used to evaluate the power-law scaling exponents (ν_x(y)) for the longitudinal and transverse spread, R_gx(y)∼L_c^ν_x(y); we find that the exponents ν_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 ν_y≃1/3-2/3 to the wall with ν_y≃2/3-1. A similar crossover also occurs for the longitudinal component of R_g but with an opposite trend, i.e., magnitude of ν_x is larger in bulk than at the wall.

Comments

© 1997, Physical Review Letters

Publisher's Version

Publication Title

Physical Review Letters

Volume

79

Issue

15

First Page

2903

Last Page

2906

Recommended Citation

Foo, G. M., Pandey, R. B. (1997). Nonuniversal Scaling and Conformational Crossover of Polymer Chains in an Electrophoretic Deposition. Physical Review Letters, 79(15), 2903-2906.
Available at: https://aquila.usm.edu/fac_pubs/5434