Edinburgh Research Explorer

Spinodal decomposition in a model colloid-polymer mixture in microgravity

Research output: Contribution to journalArticle

  • A. E. Bailey
  • Wilson Poon
  • R. J. Christianson
  • Andrew B Schofield
  • U. Gasser
  • V. Prasad
  • S. Manley
  • P. N. Segre
  • L. Cipelletti
  • W. V. Meyer
  • M. P. Doherty
  • S. Sankaran
  • A. L. Jankovsky
  • W. L. Shiley
  • J. P. Bowen
  • J. C. Eggers
  • C. Kurta
  • T. Lorik
  • Peter Pusey
  • D. A. Weitz

Related Edinburgh Organisations

Original languageEnglish
Article number205701
Pages (from-to)-
Number of pages4
JournalPhysical Review Letters
Issue number20
Publication statusPublished - 16 Nov 2007


We study phase separation in a deeply quenched colloid-polymer mixture in microgravity on the International Space Station using small-angle light scattering and direct imaging. We observe a clear crossover from early-stage spinodal decomposition to late-stage, interfacial-tension-driven coarsening. Data acquired over 5 orders of magnitude in time show more than 3 orders of magnitude increase in domain size, following nearly the same evolution as that in binary liquid mixtures. The late-stage growth approaches the expected linear growth rate quite slowly.

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