Vapour–Liquid Equilibria in the Polystyrene + Toluene System at Higher Concentrations of Solvent

0444044 - ÚCHP 2016 RIV HR eng J - Journal Article
Pavlíček, Jan - Bogdanić, Grozdana - Wichterle, Ivan
Vapour–Liquid Equilibria in the Polystyrene + Toluene System at Higher Concentrations of Solvent.
Chemical and Biochemical Engineering Quarterly. Roč. 29, č. 1 (2015), s. 1-4. ISSN 0352-9568. E-ISSN 1846-5153
R&D Projects: GA ČR GA15-19542S
Institutional support: RVO:67985858
Keywords : polymer-solvent system * vapor-liquid equilibrium * correlation
Subject RIV: CF - Physical ; Theoretical Chemistry
Impact factor: 0.675, year: 2015

Vapour–liquid equilibria (VLE) were determined in the polystyrene + toluene system under isothermal conditions at 363.15, 373.15, and 383.15 K using an improved all-glass microebulliometer with circulation of the liquid phase for the dynamic measurement of total pressure over liquid mixtures. The experimental data were correlated using the UNIQUAC-free volume model. Additionally, the applicability of three known predictive models was tested. It was found that both the GC-Flory equation of state and the UNIFAC-vdW-FV model provide better prediction of VLE than the Entropic-FV model, which very slightly underestimates the experimental data for the system studied.
Permanent Link: http://hdl.handle.net/11104/0246638