Title: Viscoelastic Properties and Orientation of Polymers in Solution
Authors: Clasen, Christian
Kulicke, W.-M. #
Issue Date: Aug-2000
Host Document: Proceedings of the XIIIth International Congress on Rheology edition:Vol. 1 pages:387-389
Conference: XIIIth International Congress on Rheology edition:XIII location:Cambridge, UK date:20-25 August 2000
Abstract: Using rheological shear and oscillation measurements, it is possible to determine the viscoelastic properties of a system quantitatively, as a function of the many influential parameters. The aim here was to establish structure-property relationships for a polymer in a solvent system from the viscoelastic material functions correlated with data from polymer analysis These structure-property relationships make it possible to quantitatively predict the viscoelastic properties as a function of the molecular parameters.
In addition to these rheo-mechanical measurements, recent years have also seen the parallel determination of rheo-optical material functions, such as flow birefringence and flow dichroism, used in order to investigate macroscopic viscoelastic flow behaviour at a molecular level. Apart from determining these moduli, which are proportional to rheo-mechanical parameters, it was also possible to determine the orientation of polymer segments and aggregated structures. In particular, it became possible to explain aggregation behaviour during the sol-gel transition and during temperature-induced phase separation on a molecular level. The overriding aim of these investigations was to establish new structure-property relationships by correlating the rheo-mechanical and the rheo-optical material functions.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Soft Matter, Rheology and Technology Section
# (joint) last author

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