ISSN:
1434-6036
Keywords:
PACS. 61.30.Eb Experimental determinations of smectic, nematic, cholesteric, and other structures - 64.70.Md Transitions in liquid crystals
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: The present work is focused on density measurements near the smectic A-cholesteric liquid crystal phase transition for cholesteryl myristate , cholesteryl nonanoate and binary mixtures of and and cholesteryl caproate and . The results have evidenced that the transition crosses over from first to second order when both the mean molecular length and the reduced temperature, r (ratio between the smectic A-cholesteric and cholesteric-isotropic phase transition temperatures), decrease in the system. The occurrence of a second order phase transition is observed for a concentration very near 63.1 molar percent of in the mixture at r .
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100510050509
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