AN EVALUATION OF OSMOTIC PRESSURE MEASUREMENTS USING POLYVINYL ACETATE SYSTEMS
- 1 December 1951
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Chemistry
- Vol. 29 (12) , 1104-1114
- https://doi.org/10.1139/v51-129
Abstract
Measurements of osmotic pressures of polyvinyl acetate solutions in various solvents have been made. These pressures are precise to ±0.005 cm. of solvent and can be repeated on successive samples to 0.02 cm. In five solvents, plots of reduced osmotic pressure (π/C2) against concentration show distinct upward curvature which differs significantly from theoretical equations derived by Flory and by Huggins. The evidence suggests that further refinement of these theoretical equations is required to bring them into exact agreement with experimental data.Keywords
This publication has 6 references indexed in Scilit:
- High polymer solutions. Part II.—The osmotic pressures of polystyrene solutionsTransactions of the Faraday Society, 1950
- Statistical Mechanics of Dilute Polymer SolutionsThe Journal of Chemical Physics, 1949
- Thermodynamic Studies of Polyvinyl Acetate Solutions in the Dilute and Moderately Concentrated RangeThe Journal of Chemical Physics, 1949
- Osmometry of high polymer solutions. II. Osmotic measurements using bacterial cellulose membranesJournal of Polymer Science, 1949
- The Vapour-Pressure Equations of Solutions and the Osmotic Pressure of RubberMathematical Proceedings of the Cambridge Philosophical Society, 1943
- Thermodynamics of High Polymer SolutionsThe Journal of Chemical Physics, 1942