Publication Type Journal Article
Title Solubilities of C-Tetraalkylcalix[4]resorcinarenes in SCCO2: Experimental Measurements, Characterization, and Correlation
Authors José Coelho Greta P. Naydenova Stoyan M. Miloshev Christo P. Novakov Pavlina P. Petrova Dragomir S. Yankov Roumiana Stateva
Groups MET
Journal JOURNAL OF CHEMICAL AND ENGINEERING DATA
Year 2015
Month March
Volume 60
Number 3
Pages 909-918
Abstract The solubilities of two C-tetraalkylcalix[4]resorcinarenes, namely C-tetramethylcalix[4]resorcinarene and C-tetrapentylcalix[4]resorcinarene, in supercritical carbon dioxide (SCCO2) were measured in a flow-type apparatus at a temperature range from (313.2 to 333.2) K and at pressures from (12.0 to 35.0) MPa. The C-tetraalkylcalix[4]resorcinarenes were synthesized applying our optimized procedure and fully characterized by means of gel permeation chromatography, infrared and nuclear magnetic resonance spectroscopy. The solubilities of the C-tetraalkylcalix[4]resorcinarenes in SCCO2 were determined by analysis of the extracts obtained by HPLC with ultraviolet (UV) detection methodology adapted by our team. Four semiempirical density-based models, and the SoaveRedlichKwong cubic equation of state (SRK CEoS) with classical mixing rules, were applied to correlate the solubility of the calix[4]resorcinarenes in the SC CO2. The physical properties required for the modeling were estimated and reported.
DOI http://dx.doi.org/10.1021/je500990f
ISBN
Publisher AMER CHEMICAL SOC
Book Title
ISSN 0021-9568
EISSN
Conference Name
Bibtex ID ISI:000351186600058
Observations
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