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Authors
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Braun, H.-G. ; Meyer, E.
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Title
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Structure formation of ultrathin PEO films at solid interfaces - complex pattern formation by dewetting and crystallization
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Date
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13.02.2013
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Number
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36002
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Abstract
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The direct contact of ultrathin polymer films with a solid substrate may result in thin film rupture caused by dewetting. With crystallisable polymers such as polyethyleneoxide (PEO), molecular self-assembly into partial ordered lamella structures is studied as an additional source of pattern formation. Morphological features in ultrathin PEO films (thickness < 10 nm) result from an interplay between dewetting patterns and diffusion limited growth pattern of ordered lamella growing within the dewetting areas. Besides structure formation of hydrophilic PEO molecules, n-alkylterminated (hydrophobic) PEO oligomers are investigated with respect to self-organization in ultrathin films. Morphological features characteristic for pure PEO are not changed by the presence of the n-alkylgroups.
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Publisher
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International Journal of Molecular Sciences
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Wikidata
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Citation
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International Journal of Molecular Sciences 14 (2013) 3254-3264
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DOI
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https://doi.org/10.3390/ijms14023254
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Tags
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