Beyond simple depletion: phase behaviour of colloid-star polymer mixtures

Wilson Poon, S U Egelhaaf, J Stellbrink, J Allgaier, Andrew B Schofield, Peter Pusey

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Significant progress has been made in the last decade in understanding mixtures of hard-sphere colloids and (smaller) non-adsorbing, ideal, linear polymers. We introduce extra complexity into this simple model system by replacing the linear polymers with star-branched polymers with increasing functionality but constant radius of gyration. The observed phase diagrams, interpreted in light of what is known about hard-sphere colloid plus linear polymer and binary-hard-sphere mixtures, suggest that 32-arm stars are close to behaving hard-sphere-like in colloid-star mixtures at this size ratio.

Original languageEnglish
Pages (from-to)897-907
Number of pages11
JournalPhilosophical Transactions A: Mathematical, Physical and Engineering Sciences
Volume359
Issue number1782
DOIs
Publication statusPublished - 15 May 2001

Keywords / Materials (for Non-textual outputs)

  • depletion
  • colloid
  • hard spheres
  • polymer
  • star polymer
  • CLUSTER AGGREGATION SIMULATION
  • FREE-ENERGY LANDSCAPES
  • HARD-SPHERE MIXTURES
  • COMPUTER-SIMULATION
  • LIGHT-SCATTERING
  • KINETIC MAPS
  • PARTICLES
  • MODEL
  • SUSPENSIONS
  • DISPERSIONS

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