Thermotropic and lyotropic properties of long chain alkyl glycopyranosides. Part II. Disaccharide headgroups

We have investigated the thermotropic and lyotropic properties of some long chain alkyl glycosides with disaccharide headgroups. The thermotropism was measured with polarising microscopy and additionally the lyotropism with the contact preparation method, Fourier-transform Infrared (FTIR) spectrosco...

Full description

Saved in:
Bibliographic Details
Published in:Chemistry and physics of lipids 2000-08, Vol.106 (2), p.157-179
Main Authors: von Minden, H.M, Brandenburg, K, Seydel, U, Koch, M.H.J, Garamus, V, Willumeit, R, Vill, V
Format: Article
Language:English
Subjects:
Alkyl glycopyranosides
Carbohydrate Conformation
Carbohydrate Sequence
Cholesteric phases
Cubic phases
Disaccharides - chemistry
Glycolipids
Glycosides - chemistry
Lyotropic liquid crystals
Spectroscopy, Fourier Transform Infrared
Thermotropic liquid crystals
X-Ray Diffraction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We have investigated the thermotropic and lyotropic properties of some long chain alkyl glycosides with disaccharide headgroups. The thermotropism was measured with polarising microscopy and additionally the lyotropism with the contact preparation method, Fourier-transform Infrared (FTIR) spectroscopy, X-ray diffraction and small angle neutron scattering. A broad thermotropic as well as lyotropic polymorphism was found. The compounds displayed thermotropic S A (lamellar) and cubic phases, and the investigation of the lyotropic phase behaviour led to the observation of inverted bicontinuous cubic V II phases, lamellar L α phases, normal bicontinuous cubic V I phases, normal columnar H I phases, normal discontinuous cubic I I phases and lyotropic cholesteric phases. The phases are discussed with respect to the chemical structures that have been varied systematically to derive structure–property relationships.
ISSN:0009-3084
1873-2941
DOI:10.1016/S0009-3084(00)00151-1