Queste, Sébastien and Michina, Youlia and Dewilde, Annie and Neueder, Roland and Kunz, Werner and Aubry, Jean-Marie (2007) Thermophysical and bionotox properties of solvo-surfactants based on ethylene oxide, propylene oxide and glycerol. Green Chemistry 9 (5), pp. 491-499.
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Thermophys. and bionotox properties of a new class of natural solvo-surfactants, glycerol 1-monoethers, were investigated in comparison with widespread but harmful glycol ethers. Vapor pressures and heats of vaporization were measured between 25 °C and 50 °C, and calcd. thanks to two group contribution methods. Evapn. rates and Hansen parameters, evaluated from TGA measurements and group contributions resp., were compared as well. Bionotox properties, i.e. cytotoxicity, irritating power and biodegradability, were evaluated exptl. Glycerol 1-monoethers turned out to be less volatile than glycol derivs., but contrary to the latter they will not be considered as VOCs. Toxicities and irritating powers are equiv. and increase with increasing alkyl chain length, i.e. with increasing amphiphilicity. Glycerol ethers are degradable at lower concns. compared to glycol compds., which is related to their higher interfacial activity.
|Institutions:||Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > Prof. Dr. Werner Kunz|
|Keywords:||nonionic surfactant biodegradability toxicity irritancy|
|Subjects:||500 Science > 540 Chemistry & allied sciences|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||22 May 2012 16:00|
|Last Modified:||22 May 2012 16:00|
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