Abstract
Although rigid molecules could be expected to have simpler physical behaviour than flexibles ones, this turns out not to be the case for liquid crystalline polymers (LCPs). In addition to anisotropy, which is inherent to the liquid crystalline state, various other features can be identified in the mechanical behaviour. They include complex nonlinearities and pronounced time effects. Nevertheless specific scaling principles seem to apply. They suggest a particular change in microstructure with shear rate, that can be confirmed in part by direct structural measurements on flowing LCPs. Flow-induced structural elements can be detected over a wide range of length scales. A comparison between the effects of flow history on rheological and on textural changes shows additional relations. As a result a rather detailed structural interpretation of the mechanical behaviour of LCPs emerges.
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© 1993 Springer Science+Business Media Dordrecht
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Mewis, J., Moldenaers, P. (1993). Rheology and Microstructure of Liquid Crystalline Polymers. In: Dijksman, J.F., Nieuwstadt, F.T.M. (eds) Topics in Applied Mechanics. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2090-6_24
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DOI: https://doi.org/10.1007/978-94-011-2090-6_24
Publisher Name: Springer, Dordrecht
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