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Dynamics and flow-induced phase separation in polymeric fluids

Authors
Journal
Current Opinion in Colloid & Interface Science
1359-0294
Publisher
Elsevier
Publication Date
Volume
4
Issue
2
Identifiers
DOI: 10.1016/s1359-0294(99)00016-3

Abstract

Abstract The past few years have seen many advances in our understanding of the dynamics of polymeric fluids. These include improvements on the successful reptation theory; an emerging molecular theory of semiflexible chain dynamics; and an understanding of how to calculate and classify `phase diagrams' for flow-induced transitions. Experimentalists have begun mapping out the phase behavior of wormlike micelles, a `living' polymeric system, in flow: these systems undergo transitions into shear-thinning or shear-thickening phases, whose variety is remarkably rich and poorly understood. Polymeric ideas must be extended to include the delicate charge and composition effects which conspire to stabilize the micelles and are strongly influenced by flow.

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