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Authors Schneider, K. ; Nitsche, D. ; Stamm, M.
Title Deformation and relaxation of grafted polymer layers at elevated temperatures
Date 01.06.2015
Number 42583
Abstract 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.
Publisher Colloid and Polymer Science
Wikidata
Citation Colloid and Polymer Science 293 (2015) 1593-1605
DOI https://doi.org/10.1007/s00396-015-3549-0
Tags 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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