title: Self-organizing properties of monosubstituted sucrose fatty acid esters: the effects of chain length and unsaturation.
abstract: 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.
authors.affiliation: 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.
authors.forename: Valérie
authors.initials: V
authors.lastname: Molinier
authors.forename: Paul J J
authors.initials: PJ
authors.lastname: Kouwer
authors.forename: Juliette
authors.initials: J
authors.lastname: Fitremann
authors.forename: Alain
authors.initials: A
authors.lastname: Bouchu
authors.forename: Grahame
authors.initials: G
authors.lastname: Mackenzie
authors.forename: Yves
authors.initials: Y
authors.lastname: Queneau
authors.forename: John W
authors.initials: JW
authors.lastname: Goodby
mesh_terms: 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
chemical_list: D004952:Esters; D005227:Fatty Acids; D013395:Sucrose