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Journal Reference
Colloid and Polymer Science , 2015, Volume 293, Issue 6, pp 1593-1605.
Konrad Schneider1 , David Nitsche1,2 , Manfred Stamm1,3
[expand title=”Show Affiliations”]- Leibniz-Institut für Polymerforschung Dresden e.V, Hohe Strasse 6, 01069, Dresden, Germany
- Fakultät Mathematik und Naturwissenschaften, Fachrichtung Chemie und Lebensmittelchemie, Technische Universität Dresden, Dresden, Germany
- Fakultät Mathematik und Naturwissenschaften, Fachrichtung Physikalische Chemie Polymerer Materialien, Technische Universität Dresden, Dresden, Germany
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.
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