Creation of multi-scale stripe-like patterns in thin polymer blend films

P. Müller-Buschbaum; E. Bauer; S. Pfister; S. V. Roth; M. Burghammer; C. Riekel; C. David; U. Thiele

doi:10.1209/epl/i2005-10369-6

Creation of multi-scale stripe-like patterns in thin polymer blend films

P. Müller-Buschbaum, E. Bauer, S. Pfister, S. V. Roth, M. Burghammer, C. Riekel, C. David, U. Thiele

Chair of Functional Materials

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

Multiscale polymeric patterns resulting from flow on an inclined substrate of a binary polymer blend solution of polystyrene and poly-n-butylacrylate in toluene are analyzed with sub-microbeam GISAXS and real space techniques. The locally isotropic phase-separation structure on the 1 micron scale, including a molecular substructure, is embedded in a superstructure on the 100 micron scale of stripe-like variations of film thickness and composition oriented perpendicular to the flow direction. It is argued that the multiscale pattern results from the interplay of evaporation, convective flow, differential diffusion and spinodal decomposition.

Original language	English
Pages (from-to)	35-41
Number of pages	7
Journal	Europhysics Letters
Volume	73
Issue number	1
DOIs	https://doi.org/10.1209/epl/i2005-10369-6
State	Published - 1 Jan 2006

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abstract = "Multiscale polymeric patterns resulting from flow on an inclined substrate of a binary polymer blend solution of polystyrene and poly-n-butylacrylate in toluene are analyzed with sub-microbeam GISAXS and real space techniques. The locally isotropic phase-separation structure on the 1 micron scale, including a molecular substructure, is embedded in a superstructure on the 100 micron scale of stripe-like variations of film thickness and composition oriented perpendicular to the flow direction. It is argued that the multiscale pattern results from the interplay of evaporation, convective flow, differential diffusion and spinodal decomposition.",

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AU - Bauer, E.

AU - Pfister, S.

AU - Roth, S. V.

AU - Burghammer, M.

AU - Riekel, C.

AU - David, C.

AU - Thiele, U.

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AB - Multiscale polymeric patterns resulting from flow on an inclined substrate of a binary polymer blend solution of polystyrene and poly-n-butylacrylate in toluene are analyzed with sub-microbeam GISAXS and real space techniques. The locally isotropic phase-separation structure on the 1 micron scale, including a molecular substructure, is embedded in a superstructure on the 100 micron scale of stripe-like variations of film thickness and composition oriented perpendicular to the flow direction. It is argued that the multiscale pattern results from the interplay of evaporation, convective flow, differential diffusion and spinodal decomposition.

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JO - Europhysics Letters

JF - Europhysics Letters

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Creation of multi-scale stripe-like patterns in thin polymer blend films

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