A stable flow-induced structured phase in wormlike micellar solutions

Neville Dubash, Joshua Cardiel, Perry Cheung, Amy Q. Shen

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

A stable flow-induced transition of a wormlike micellar solution to a structured solution phase is studied. This transition occurs when the solution is flowed through a specially designed microfluidic device. Rheological properties of the structured phase are presented along with a simple model for structure formation. We model the solution and structure formation using a network scission model that contains two species of interacting, elastically-active micellar chains. The model permits transition to the structured state when the chains experience a high degree of elongation primarily due to extensional strains that are present in the microchannel flow but absent in conventional shear flows.

Original languageEnglish (US)
Pages (from-to)876-879
Number of pages4
JournalSoft Matter
Volume7
Issue number3
DOIs
StatePublished - Feb 7 2011

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics

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