Cholesteric states of micellar solutions
- 1 May 1978
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 35 (5) , 1405-1412
- https://doi.org/10.1080/00268977800101051
Abstract
The effects of optically active compounds on amphiphilic nematics are reported. The following systems have been studied : (1) caesium decylsulphate, decanol, water plus tartaric acid ; (2) ammonium decylsulphate, ammonium sulphate, decanol, water plus brucine sulphate ; and (3) decylammonium chloride, water plus cholesterol. Phase transitions to cholesteric states are induced by the optically active compounds in all systems. Brucine sulphate has the highest twisting power ; tartaric acid the lowest. The results are analysed on the basis of intermolecular interactions and an explanation is proposed for the observed differences in twisting power.Keywords
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