Influence of hydrodynamics on cluster formation in colloid - Polymer mixtures

Jonathan K. Whitmer, Erik Luijten*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

We investigate the role of hydrodynamic interactions in the formation of clusters of attractive colloids by means of computer simulations. In simulations employing the multiparticle collision dynamics scheme to represent hydrodynamics, larger and, to a lesser extent, more elongated transient clusters are formed than in simulations merely employing Langevin dynamics. As these clusters constitute the precursors to a colloidal gel, their shape affects the structure of the gel as well as the threshold concentration and colloidal attraction strength at which gelation occurs. Our findings support recent observations regarding the effect of hydrodynamics on colloidal gel formation.

Original languageEnglish (US)
Pages (from-to)7294-7300
Number of pages7
JournalJournal of Physical Chemistry B
Volume115
Issue number22
DOIs
StatePublished - Jun 9 2011

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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