previously reported ChCl : diol mixtures the viscosity increases.5
This is due to the 3D intermolecular H-bond interactions in
glycerol that are broken up on addition of ChCl resulting in a
less ordered system. This is also backed up by the density data
which decreases as ChCl is added, where this is not true for the
diol systems. As would be expected the conductivity increases
as a function of ChCl addition due to more charge carrying
species being made available in an increasingly more fluid
solvent.
(under the Glycerol Challenge) and Scionix Ltd. for funding
this work.
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The data has provided information on the relative polarity
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By performing esterification of glycerol it has been shown that
at low fatty acid concentrations and high ChCl concentrations
the monoester can be selectively produced at a significantly
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Acknowledgements
The authors would like to acknowledge the EPSRC (for a
studentship for RCH), the Technology and Strategy Board
90 | Green Chem., 2011, 13, 82–90
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The Royal Society of Chemistry 2011
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