Orientations of the lamellar phase of block copolymer melts under oscillatory shear flow

AN Morozov*, JGEM Fraaije

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We develop a theory to describe the reorientation phenomena in the lamellar phase of block copolymer melts under reciprocating shear flow. We show that, similar to the steady shear, the oscillating flow anisotropically suppresses fluctuations and gives rise to the parallel to-->perpendicular to transition. The experimentally observed high-frequency reverse transition is explained in terms of interaction between the melt and the shear-cell walls.

Original languageEnglish
Article number031803
Number of pages3
JournalPhysical Review E - Statistical, Nonlinear and Soft Matter Physics
Volume65
Issue number3
DOIs
Publication statusPublished - Mar 2002

Keywords

  • DIBLOCK COPOLYMER
  • TRANSITION
  • ALIGNMENT
  • EQUILIBRIUM

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