TITLE

Copolymers in asymmetric interface potentials: A Monte Carlo study

AUTHOR(S)
Sommer, Jens-Uwe; Peng, Gongwen; Blumen, Alexander
PUB. DATE
November 1996
SOURCE
Journal of Chemical Physics;11/8/1996, Vol. 105 Issue 18, p8376
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We investigate using scaling methods and Monte Carlo simulations random AB-copolymers at the interface between two good solvents. The asymmetry of the interface potential gives rise to an adsorption–desorption transition which shows for infinitely long chains a critical point. For finite chains we analyze the crossover scaling behavior near this critical point. Two new interface exponents, namely the crossover exponent [lowercase_phi_synonym] and the interface order parameter exponent β are proposed. Simulation results obtained using the bond fluctuation model agree well with the scaling predictions. From the simulation data we obtain as best estimates [lowercase_phi_synonym]=1.3±0.1 and β=0.35±0.04. © 1996 American Institute of Physics.
ACCESSION #
7624866

 

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