Abstract
A membrane osmometer designed for use at pressures greater than 0.1 MPa and less than 6 MPa was employed to determine the pressure coefficient of the equilibrium osmotic pressure (∂π/∂P) of a dilute polystyrene/toluene solution. The pressure coefficient of the second virial coefficient (∂A2/∂P), calculated from ∂π/∂P, was 6 (±4) × 10-5 cm3 mol g-2 MPa-1, which was in reasonable agreement with the value obtained from pressure-dependent light scattering.
Original language | English |
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Pages (from-to) | 3064-3069 |
Number of pages | 6 |
Journal | Journal of Polymer Science, Part B: Polymer Physics |
Volume | 41 |
Issue number | 23 |
DOIs | |
Publication status | Published - 1 Dec 2003 |
Keywords
- Osometry
- Pressure dependence
- Second virial coefficient