Density mismatch in thin diblock copolymer films

Details Density mismatch in thin diblock copolymer films Density mismatch in thin diblock copolymer films

1999-04-16

arxiv.org/abs/cond-mat/9904240v1

Physics

Condensed Matter

Materials Science

9 pages and 8 figures. Needs EPSF macros. Submitted to PRE

Scientific paper

10.1103/PhysRevE.61.4118

Thin films of diblock copolymer subject to gravitational field are simulated by means of a cell dynamical system model. The difference in density of the two sides of the molecule and the presence of the field causes the formation of lamellar patterns with orientation parallel to the confining walls even when they are neutral. The concentration profile of those films is analyzed in the weak segregation regime and a functional form for the profile is proposed.

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