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Authors
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Müller-Buschbaum, P. ; Gutmann, J.S. ; Lorenz-Haas, C. ; Wunnicke, O. ; Stamm, M. ; Petry, W.
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Title
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Dewetting of Thin Diblock Copolymer Films: Spinodal Dewetting Kinetics
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Date
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09.04.2002
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Number
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10411
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Abstract
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The stability of thin diblock copolymer films with respect to the annealing above themicrophase separation temperature is investigated on long time scales and at different film thicknesses.Poly(styrene-<I>block</I>-<I>p</I>-methylstyrene) diblock copolymer films on top of silicon substrates are examinedwith scanning force microscopy and off-specular X-ray scattering. At film thickness below the lamellarspacing of the bulk material a dewetting is observed. The kinetics of the film destabilization are explainablewithin a spinodal dewetting model. The observed dewetting structures belong to a wet dewetting. In thecase of film thicknesses which enable the buildup of a few lamellae no sign of instability was detected.
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Publisher
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Macromolecules
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Wikidata
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Q61996264
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Citation
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Macromolecules 35 (2002) 2017-2023
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DOI
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https://doi.org/10.1021/MA010192Y
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Tags
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polymer-blend films consistent-field calculations monte-carlo simulations x-ray block-copolymers phase-separation reflectivity scattering morphology interfaces
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