Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 135, Issue 4, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3615491
Keywords
lyotropic liquid crystals; melting; nematic liquid crystals; organic compounds; smectic liquid crystals; X-ray diffraction
Funding
- Japan Society for the Promotion of Science (JSPS) [22350056]
- Grants-in-Aid for Scientific Research [22350056] Funding Source: KAKEN
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Quasi-binary (QB) picture of thermotropics, which regards a neat thermotropic liquid crystal as a binary system consisting of (semi)rigid core and molten alkyl chain, was assessed experimentally for the most famous (and representative) thermotropic mesogenic series nCB. By adding n-heptane as solvent, the smectic A phase was induced in 7CB-n-heptane system. Small angle x-ray diffraction showed that the QB picture holds not only in the phase behavior but also in the structure. It is suggested that the melting of 8CB and 9CB to isotropic liquid via smectic and nematic liquid crystals can be understood as a thermotropic-lyotropic crossover. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3615491]
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