Authors
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Schneider, K. ; Nitsche, D. ; Stamm, M.
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Title
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Deformation and relaxation of grafted polymer layers at elevated temperatures
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Date
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01.06.2015
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Number
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42583
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Abstract
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The mechanical deformation and relaxation behaviour of thin-grafted polymer layers is investigated by a scanning force microscope (SFM) in contact mode. The layers were considerably plastically deformed at different temperatures. By scratching across the surface, a ripple structure is created. The temperature- and time-dependent relaxation of the ripple structure is followed directly by SFM and discussed in comparison to classical viscoelastic relaxation behaviour and time-temperature superposition of bulk material. In contrast to classical viscoelastic behaviour, here, the strong plastic deformation of the grafted layers accelerates the relaxation behaviour.
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Publisher
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Colloid and Polymer Science
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Wikidata
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Citation
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Colloid and Polymer Science 293 (2015) 1593-1605
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DOI
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https://doi.org/10.1007/s00396-015-3549-0
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Tags
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polymer layers relaxation master curves scanning force microscopy atomic-force microscopy oriented poly(ethylene-terephthalate) film nanometer length scale plastic-deformation glass-transition bundle formation surface nanowear polystyrene brushes
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