Self-organizing properties of monosubstituted sucrose fatty acid esters: the effects of chain length and unsaturation.
Three families of mono-substituted sucrose fatty acid esters were prepared by enzymatic and classical synthetic procedures, and their self-assembly and self-organizational properties were investigated by thermal polarised light microscopy, differential scanning calorimetry and X-ray diffraction. The properties were evaluated as a function of the fatty acid chain length. For the lower homologues of the series columnar liquid-crystalline stacking structures were found, whereas for the higher homologues, lamellar phases predominated. A model for the columnar stacking arrangement, consisting of a unique arrangement of the molecules which could lead to the creation of multiple internal ion channels between the hydrophobic interior and the hydrophilic exterior of the columns, is suggested.
Molinier
Valérie
V
Laboratoire de Chimie Organique, UMR 5181 CNRS-UCBL-INSA, Institut National des Sciences Appliquées de Lyon, Bât. J. Verne, 20 avenue A. Einstein, 69621 Villeurbanne Cedex, France.
Kouwer
Paul J J
PJ
Fitremann
Juliette
J
Bouchu
Alain
A
Mackenzie
Grahame
G
Queneau
Yves
Y
Goodby
John W
JW
D002152:Calorimetry, Differential Scanning; D004952:Esters / Q000737:chemistry*; D005227:Fatty Acids / Q000737:chemistry*; D008859:Microscopy, Polarization; D008958:Models, Molecular; D008968:Molecular Conformation; D015394:Molecular Structure; D013395:Sucrose / Q000737:chemistry*; D013696:Temperature; D014961:X-Ray Diffraction
D004952:Esters; D005227:Fatty Acids; D013395:Sucrose