title: Turbidity and critical behavior of a colloid-polymer system.
abstract: The osmotic compressibility and correlation length of a colloid-polymer system, consisting of grafted silica particles in cyclohexane in the presence of the soluble polymer polydimethylsiloxane, are determined by turbidity measurements in the entire one-phase liquid region, with emphasis on the critical region. The renormalized critical exponents of the osmotic compressibility and the correlation length are found to be respectively gamma(*)=1.39+/-0.01 and nu(*)=0.71+/-0.01, while the amplitude of the correlation length is 16.0+/-0.3 nm. Comparison is made with theoretical predictions.
authors.affiliation: Department of Chemical Engineering, Rice University, Houston, Texas 77005, USA.
authors.forename: B H
authors.initials: BH
authors.lastname: Chen
authors.forename: B
authors.initials: B
authors.lastname: Payandeh
authors.forename: M
authors.initials: M
authors.lastname: Robert