Validity of the high temperature approximation and influence of polydispersity on the phase separation in charged colloidal dispersions
- 10 October 1985
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 56 (2) , 385-397
- https://doi.org/10.1080/00268978500102391
Abstract
A recent perturbation calculation predicting a ‘liquid-gas’ phase separation of charge-stabilized colloidal suspensions is tested against the thermodynamically self-consistent generalized mean spherical approximation. A comparison between the two calculations shows that the perturbation calculation predicts a reasonably accurate critical temperature, but overestimates the critical density. These critical parameters are moreover shown to be rather insensitive to moderate degrees of polydispersity.Keywords
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