Anisotropy of lamellar block copolymer grains

N. P. Balsara, C. M. Marques, B. A. Garetz, M. C. Newstein, S. P. Gido

Research output: Contribution to journalArticle

Abstract

The Wulff construction and the theory of Milner and Morse [Phys. Rev. E 54, 3793 (1996)] were used to calculate the shape of grains formed when a lamellar block copolymer phase is formed by a shallow quench into the ordered state. The calculations show that the grains are ellipsoids of revolution, with an aspect ratio [formula presented] This value is in reasonable agreement with results of transmission electron microscopy and depolarized light scattering experiments, which indicate that the average value of ρ of grains formed during the early stages of the disorder-to-order transition is about 2.0.

Original languageEnglish (US)
Number of pages1
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume66
Issue number5
DOIs
StatePublished - Nov 25 2002

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ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

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