High-resolution surface tension measurements have been carried out on the free-standing films of more than 30 selected liquid-crystal compounds in their smectic phases. Surface tension (g) values falling into major categories of 27, 24, 21, 13, and 11.5 dyn/cm have been obtained. The dependence of g on specific terminal groups or molecular structures will be discussed. Our results provide important information about the molecular origin of surface tension.

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Persistent URL dx.doi.org/10.1021/la980224j
Journal Langmuir
Mach, P, Huang, C. C, Stoebe, T, Wedell, E. D, Nguyen, T, de Jeu, W. H, … Nohira, H. (1998). Surface tension obtained from various smectic free-standing films: The molecular origin of surface tension. Langmuir, 14, 4330–4341. doi:10.1021/la980224j