Bulletin of the American Physical Society
2005 APS March Meeting
Monday–Friday, March 21–25, 2005; Los Angeles, CA
Session R1: Poster Session III
Wednesday, March 23, 2005
LACC Room: Exhibit Hall 1:00-4:00pm
Abstract ID: BAPS.2005.MAR.R1.218
Abstract: R1.00218 : Confined diblock copolymer melts: a field-theoretic computational study
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(University of California, Santa Barbara)
Using field-theoretic simulations, we study the effects of confinement and fluctuations in the location of the order-disorder transition (ODT) for a diblock copolymer system. Specifically, we consider a melt of copolymers confined between two neutral hard walls separated by a distance L. For this system, it is found that confinement induces a shift in the ODT which depends on the strength of the fluctuations (dominated by the length of the copolymers), as well as on the width of the slit. The shift in the ODT due to fluctuations presents a minimum when the slit width is comparable to the unperturbed size of the polymer. Also, we present results on the structure of the disorder phase close to the ODT which exhibits non-trivial oscillations in the composition fluctuations.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2005.MAR.R1.218
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