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Advisor(s)
Abstract(s)
Director distortion patterns and backflow effects in transient flows of nematic solutions of PBLG/m-cresol are studied by deuteron NMR. The simulation of the observed NMR spectra as a function of time allows to characterise the director field pattern and to evaluate most of the viscoelastic properties of the system. A good agreement with classical rheometry is observed.
Description
Keywords
Liquid crystal polymer PBLG Rheo-NMR Viscoelasticity
Citation
VERON, Alain; [et al] – NMR study of flow and viscoelastic properties of PBLG/m-Cresol lyotropic liquid crystal. Molecular Crystals and Liquid Crystals. ISSN 1542-1406. Vol. 331 (1999), pp. 499-507.