Abstract
The transient rheological behaviour of liquid crystalline polymers (LCPs) is very complex and differs considerably from that observed in normal polymer liquids. The transients reflect, to a certain extent, the complex structural changes which are induced by the flow in LCPs. Rheological measurements reveal a wide range of times scales, these can also be observed in optical measurements. Parameters as shear rate and temperature are systematically varied. In this manner similarities between the structural mechanisms of the various transient phenomena are investigated. Two uncoupled time scales have been distinguished. Molecular orientation and domains, or defects, are logical choices for the structural interpretation of the rheological transients.
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© 1990 Elsevier Science Publishers Ltd
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Mewis, J., Moldenaers, P. (1990). Time Scales of Structural Changes During Flow in Liquid Crystalline Polymers. In: Lemstra, P.J., Kleintjens, L.A. (eds) Integration of Fundamental Polymer Science and Technology—4. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0767-6_31
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DOI: https://doi.org/10.1007/978-94-009-0767-6_31
Publisher Name: Springer, Dordrecht
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