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Phase Behavior of Sphere-Forming Triblock Copolymers in Films

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DOI: 10.4236/ojapps.2012.23023    3,216 Downloads   5,802 Views   Citations


The self-assembly of sphere-forming triblock copolymers confined between two thin homogeneous surfaces is investigated based on mean-field dynamic density functional theory. The morphologies deviating from the bulk sphere-forming phase are revealed, including cylinders oriented perpendicular to the surface, cylinders oriented parallel to the surface, perforated lamellae and lamellae by varying film thickness and surface field strength. The phase diagram of surface reconstruction is also constructed. By comparing the present phase diagram with the other relevant phase diagram for the cylinder-forming triblock copolymer film, the difference between the sphere-forming and the cylinder-forming triblock copolymer thin film is discussed.

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H. Tan, Q. Song, X. Yang and Y. Deng, "Phase Behavior of Sphere-Forming Triblock Copolymers in Films," Open Journal of Applied Sciences, Vol. 2 No. 3, 2012, pp. 163-167. doi: 10.4236/ojapps.2012.23023.


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