Diblock copolymer ordering induced by patterned surfaces

Y. Tsori, D. Andelman

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

We use a Ginzburg-Landau free-energy functional to investigate diblock copolymer morphologies when the copolymer melt interacts with one surface or is confined between two chemically patterned surfaces. For temperatures above the order-disorder transition a complete linear response description of the copolymer melt is given, in terms of an arbitrary two-dimensional surface pattern. The appearance of order in the direction parallel to the surface is found as a result of the order in the perpendicular direction. Below the order-disorder transition and in a thin-film geometry, our procedure enables an analytic calculation of distorted perpendicular and tilted lamellar phases in the presence of uniform or striped surface fields.

Original languageEnglish
Pages (from-to)722-728
Number of pages7
JournalEPL
Volume53
Issue number6
DOIs
StatePublished - 11 Mar 2001
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (all)

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