Models for Liquid–Liquid Partition in the System Ethylene Glycol–Organic Solvent and Their Use for Estimating Descriptors for Organic Compounds

2011 ◽  
Vol 73 (9-10) ◽  
pp. 941-951 ◽  
Author(s):  
Thushara Karunasekara ◽  
Colin F. Poole
Keyword(s):  
Ethylene Glycol ◽  
Organic Solvent ◽  
Organic Compounds

Competition between poly(methyl methacrylate) and poly(ethylene glycol) during their interaction with poly(silicic acid) in an organic solvent

2010 ◽  
Vol 52 (8) ◽  
pp. 842-848 ◽  
Author(s):  
I. M. Papisov ◽  
V. V. Grushina ◽  
E. A. Litmanovich ◽  
D. A. Sapozhnikov ◽  
Ya. S. Vygodskii ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Organic Solvent ◽  
Methyl Methacrylate ◽  
Silicic Acid ◽  
Poly Ethylene Glycol ◽  
Poly Methyl Methacrylate ◽  
Poly Ethylene

Electrochemical studies of the Pb2+/Pb(Hg) system in aqueous and aqueous ethylene glycol solutions

1979 ◽  
Vol 57 (14) ◽  
pp. 1801-1803 ◽  
Author(s):  
Tibor Rabockai
Keyword(s):  
Aqueous Solution ◽  
Ethylene Glycol ◽  
Organic Solvent ◽  
Electrochemical Behavior ◽  
Experimental Error ◽  
Electrochemical Studies ◽  
Temperature Range ◽  
All Solutions ◽  
Aqueous Ethylene Glycol ◽  
Current Reversal

The electrochemical behavior of the Pb2+/Pb(Hg) system in aqueous and aqueous ethylene glycol solutions is studied in the temperature range of 20.0 to 50.0 °C by means of current reversal chronopotentiometry. It is shown that the reduction of Pb2+ ion is reversible and that kinetic or catalytic complications are not present. The value of dE1/2/dT is −0.6 mV/deg in the aqueous solution and −0.5 mV/deg in the solution with 56% (w/w) or higher concentrations of the organic solvent. In the above concentration range of ethylene glycol the activation energies of diffusion and viscosity vary from 4.3 × 103 to 7.2 × 103 cal mol−1 and from 3.7 × 103 to 6.7 × 103 cal mol−1, respectively. For all solutions the solvodynamic mean radius of the diffusing species remains constant within the experimental error, suggesting that the diffusing species is always the hydrated Pb2+ ion.

Polar Probe Study of Water-Organic Solvent-Macromolecule Emulsifier Aggregates Structure

2013 ◽  
Vol 717 ◽  
pp. 233-239
Author(s):  
Hong Jing Zhang
Keyword(s):  
Ethylene Glycol ◽  
Organic Solvent ◽  
Crude Oil ◽  
Structural Properties ◽  
Theoretical Basis ◽  
Butyl Alcohol ◽  
Methyl Red ◽  
Polar Medium ◽  
Micellar Aggregates ◽  
Polar Probe

In this paper, using methyl red as polar probe, a containing LPS macromolecule emulsifier (HBS-1, MW is about 106Da) micellar aggregates in different polar medium (ethanol, n-butyl alcohol, ethylene glycol and DMF) structural properties, and provide a theoretical basis for the mechanism of the emulsified crude oil.

scholarly journals Extraction of Nobiletin and Tangeretin From Peels of Shekwasha and Ponkan Using [C2mim][(MeO)(H)PO2] and Centrifugation

2019 ◽  
Vol 14 (5) ◽  
pp. 1934578X1984581 ◽  
Author(s):  
Hitomi Mizuno ◽  
Hibiki Yoshikawa ◽  
Toyonobu Usuki
Keyword(s):  
Organic Solvent ◽  
Organic Compounds ◽  
Efficient Method ◽  
Extraction Method ◽  
Biological Activities ◽  
Extraction Yield ◽  
Citrus Reticulata ◽  
Natural Sources ◽  
Citrus Depressa ◽  
Anti Inflammation

The polymethoxyflavonoids nobiletin and tangeretin are isolated from peels of shekwasha ( Citrus depressa Hayata) and ponkan ( Citrus reticulata Blanco). These natural products possess biological activities, including anticancer and anti-inflammation properties. This report describes an efficient method for the extraction and isolation of nobiletin and tangeretin from citrus peels using 1-ethyl-3-methylimidazolium methylphosphonate ([C2mim][(MeO)(H)PO2]) and centrifugation/decantation. The results showed that the extraction yield of nobiletin and tangeretin using [C2mim][(MeO)(H)PO2]/organic solvent (1:1 w/w) was 1.4 to 1.6 times higher than that using organic solvent. This extraction method is expected to be applicable for obtaining other organic compounds from natural sources.

scholarly journals Heterogeneous Deposition of Cu2O Nanoparticles on TiO2Nanotube Array Films in Organic Solvent

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Xinwen Huang ◽  
Zongjian Liu
Keyword(s):  
Methyl Orange ◽  
Ethylene Glycol ◽  
Organic Solvent ◽  
Visible Light ◽  
Electrochemical Method ◽  
Simulated Sunlight ◽  
Organic Solution ◽  
Nanotube Array ◽  
Cu2o Nanoparticles ◽  
Novel Method

A novel method for decoration of anodic TiO2nanotube array films (NAFs) with Cu2O nanoparticles has been reported. The method is based on the reduction of Cu(II) in a mixture of ethylene glycol and N,N-dimethylformamide at 120°C for 16 h, where the resulting Cu2O can heterogeneously nucleate and grow on TiO2NAFs. The nanosized Cu2O is found to be well dispersed on the wall of TiO2nanotubes without blocking the nanotube, a commonly observed phenomenon in the case of deposition of Cu2O via electrochemical method. The amount of Cu2O deposited on the TiO2NAFs can be varied by adjusting the concentration of Cu(II) in the organic solution. UV-vis spectra measurement indicates that the decoration of TiO2NAFs with Cu2O nanoparticles greatly improves their ability to respond to visible light. By examining the photocurrent and photodegradation of methyl orange under simulated sunlight, it is found that these Cu2O-decorated TiO2NAFs show much more photoactive in comparison with the as-prepared TiO2NAFs.

scholarly journals Investigating the self-assembly and shape transformation of poly(ethylene glycol)-b-poly(d,l-lactide) (PEG-PDLLA) polymersomes by tailoring solvent-polymer interactions

2020 ◽  
Vol 11 (2) ◽  
pp. 275-280 ◽  
Author(s):  
Imke A. B. Pijpers ◽  
Fenghua Meng ◽  
Jan C. M. van Hest ◽  
Loai K. E. A. Abdelmohsen
Keyword(s):  
Ethylene Glycol ◽  
Organic Solvent ◽  
Self Assembly ◽  
Shape Change ◽  
Solvent Composition ◽  
The Self ◽  
Poly Ethylene Glycol ◽  
Shape Transformation ◽  
Polymer Interactions ◽  
Poly Ethylene

Different ratios between THF and dioxane were used to study the effect of organic solvent composition on the self-assembly and subsequent shape-change of poly(ethylene glycol)-b-poly(d,l-lactide) (PEG-PDLLA) polymersomes.

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