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

Citation
Hm. Von Minden et al., Thermotropic and lyotropic properties of long chain alkyl glycopyranosides. Part II. Disaccharide headgroups, CHEM PHYS L, 106(2), 2000, pp. 157-179
Citations number
56
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Biochemistry & Biophysics
Journal title
CHEMISTRY AND PHYSICS OF LIPIDS
ISSN journal
0009-3084 → ACNP
Volume
106
Issue
2
Year of publication
2000
Pages
157 - 179
Database
ISI
SICI code
0009-3084(200008)106:2<157:TALPOL>2.0.ZU;2-6
Abstract
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 t he contact preparation method, Fourier-transform Infrared (FTIR) spectrosco py, X-ray diffraction and small angle neutron scattering. A broad thermotro pic as well as lyotropic polymorphism was found. The compounds displayed th ermotropic S-A (lamellar) and cubic phases, and the investigation of the ly otropic phase behaviour led to the observation of inverted bicontinuous cub ic V-II phases, lamellar L-alpha phases, normal bicontinuous cubic V-I phas es, normal columnar H-I phases, normal discontinuous cubic I-I f phases and lyotropic cholesteric phases. The phases are discussed with respect to the chemical structures that have been varied systematically to derive structu re-property relationships. (C) 2000 Elsevier Science Ireland Ltd. All right s reserved.