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

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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

Abstract

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.

    Research areas

  • 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

ID: 1490543