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Title: | Pressure induced mesomorphism |
Authors: | Chandrasekhar, S. Ramaseshan, S. Reshamwala, A.S. Sadashiva, B.K. Shashidhar, R. Surendranath, V. |
Issue Date: | 1975 |
Publisher: | Indian Academy of Sciences, Bangalore, India. |
Citation: | Pramana Supplement, 1975, Vol. 1, p117-129. |
Abstract: | The paper reports the discovery of mesomorphism induced by pressure in materials that do not exhibit the liquid crystalline phase at atmospheric pressure. This observation verifies a prediction of the theory of melting of molecular crystals. Experiments were conducted on the first two members of the p-n- alkoxybenzoic acid series. These two compounds, the methoxy- and ethoxybenzoic acids, do not form liquid crystals at atmospheric pressure whereas the third and higher homologues do. However, as the pressure is raised both compounds exhibit mesophases, initially a nematic phase and then, at higher pressures, a smectic phase as well. Experimental phase diagrams are presented which establish for the first time the existence of the solid-nematic-isotropic and solid- smectic-nematic triple points in single component systems. |
Description: | Proceedings of the international liquid crystal conference, Bangalore, 1973. |
URI: | http://hdl.handle.net/2289/897 |
ISSN: | 0304-4289 |
Copyright: | Indian Academy of Sciences, Bangalore, India. |
Appears in Collections: | Research Papers (SCM) |
Files in This Item:
File | Description | Size | Format | |
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1975 Pramana supp. No.1 p117.pdf | 14p. | 598.92 kB | Adobe PDF | View/Open |
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