Viscoelastic interface motion in semidilute polymer solutions

Shunsuke Yabunaka

Research output: Contribution to journalArticlepeer-review


We study interface motion in phase separated semidilute polymer solutions near the critical point. We derive the non-Markovian equation for motion of an interface taking into account the viscoelastic effects due to the transient polymer network and the hydrodynamic interaction between interfaces. This equation indicates that the velocity of an interface is affected by the history of the past velocity when the characteristic length scale of domains is shorter than d 0 -1ε ve 2, where d 0 is the capillary length and ε ve is the viscoelastic length. We also study growth of a droplet in metastable polymer solutions. The growth is much decelerated when the radius of a droplet is smaller than d 0 -1ε ve 2.

Original languageEnglish
Article numberP07011
JournalJournal of Statistical Mechanics: Theory and Experiment
Issue number7
Publication statusPublished - Jul 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Statistics, Probability and Uncertainty


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