Lyotropic liquid crystal phase behaviour of the zwitterionic surfactants 4-n-tridecyl- and 4-n-heptadecyl-pyridinium N-oxide in water |
| |
| Authors: | H Morgans G Williams G J T Tiddy A R Katritzky G P Savaget |
| |
| Institution: |
a Department of Chemistry, University College of Swansea, Swansea, Wales
b Unilever Research Port Sunlight Laboratory, Merseyside, England
c Department of Chemistry, University of Florida, Gainesville, Florida, U.S.A.
d CSIRO Division of Chemicals and Polymers, Clayton, Australia |
| |
| Abstract: | The phase behaviour, liquid crystal structures and head group hydration of two 4-n-alkylpyridine-N-oxide surfactants have been studied using optical microscopy, DSC and 2H NMR spectroscopy. Only a limited swelling of the surfactant phase occurs in water, so that no micellar solution phase (L1) occurs. The lamellar phase is the only mesophase observed. Water (2H) quadrupole splittings indicate that the head group binds c. 6 water molecules. |
| |
| Keywords: | |
| 本文献已被 InformaWorld 等数据库收录！ |
|
