Steady-shear rheology of block copolymer melts and concentrated solutions: Defect-mediated flow at low stresses in body-centered-cubic systems

John M. Sebastian, William W. Graessley, Richard Alan Register

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

The steady-shear and dynamic viscoelastic response at low deformation rates was studied for bcc-forming block copolymer melts and concentrated solutions of various chemistries, architectures, and molecular weights. Polystyrene-polyisoprene and polystyrene-poly(ethylene-alt-propylene) diblock, triblock, and polycrystalline bcc mesophase were considered as samples. Data were explained upon analogies with defect-mediated creep in other solids.

Original languageEnglish (US)
Pages (from-to)863-879
Number of pages17
JournalJournal of Rheology
Volume46
Issue number4
DOIs
StatePublished - Jul 1 2002

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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