Structure and thermodynamics of colloid-polymer mixtures: A macromolecular approach

M. Fuchs, K. S. Schweizer

Research output: Contribution to journalArticlepeer-review


The change of the structure of concentrated colloidal suspensions upon addition of non-adsorbing polymer is studied within a two-component, Ornstein-Zernicke-based liquid state approach. The polymers' conformational degrees of freedom are considered and excluded volume is enforced at the segment level. The polymer correlation hole, depletion layer, and excess chemical potentials are described in agreement with polymer physics theory in contrast to models treating the macromolecules as effective spheres. Known depletion attraction effects are recovered for low particle density, while at higher densities novel many-body effects emerge which become dominant for large polymers.

Original languageEnglish (US)
Pages (from-to)621-627
Number of pages7
JournalEurophysics Letters
Issue number6
StatePublished - Sep 11 2000

ASJC Scopus subject areas

  • Physics and Astronomy(all)


Dive into the research topics of 'Structure and thermodynamics of colloid-polymer mixtures: A macromolecular approach'. Together they form a unique fingerprint.

Cite this