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Vapour-liquid equilibria in water plus poly(ethylene glycol) systems: New experiments and cumulative thermodynamic processing of all data.

SYSNO ASEP	0522193
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Vapour-liquid equilibria in water plus poly(ethylene glycol) systems: New experiments and cumulative thermodynamic processing of all data.
Author(s)	Pavlíček, Jan (UCHP-M)_{RID, SAI} Bogdanić, Grozdana (UCHP-M)_{RID, ORCID, SAI} Wichterle, Ivan (UCHP-M)_{RID, ORCID, SAI} Izák, Pavel (UCHP-M)_{RID, ORCID, SAI}
Article number	105901
Source Title	Journal of Chemical Thermodynamics. - : Elsevier - ISSN 0021-9614 Roč. 140, JAN 2020 (2020)
Number of pages	9 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	experimental data ; poly(ethylene glycol) ; vapour-liquid equilibrium ; correlation
Subject RIV	CF - Physical ; Theoretical Chemistry
OECD category	Physical chemistry
R&D Projects	GA18-05484S GA ČR - Czech Science Foundation (CSF)
Method of publishing	Open access
Institutional support	UCHP-M - RVO:67985858
UT WOS	000485102200018
EID SCOPUS	85070918293
DOI	10.1016/j.jct.2019.105901
Annotation	Dependences of total pressure on the composition of water + poly(ethylene glycol) systems were measured with both the ebulliometric and static method. New data on vapour-liquid equilibria cover the temperature range 303.15–363.15 K and the range of the weight fraction of solvent 0.5–1.0 for polymers of nominal molecular weight 1000, 3000, and 6000 g mol-1. These data together with those determined earlier were correlated using the UNIQUAC free-volume (FV) model to be consistent with previous studies. In addition, all available literature data on this system were processed in the same way. As a result, the obtained average deviations were used as indicators of data quality. Average deviation of experimental and calculated solvent activity was about 0.0004 for all our data. The evaluated adjustable parameters were proportional to molecular weight, which ensures reliable interpolation and even extrapolation beyond the investigated temperature and molecular weight ranges.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2021
Electronic address	https://www.sciencedirect.com/science/article/pii/S0021961419301405?via%3Dihub

Number of the records: 1