Advertisement

Abstract

Liquid crystals or mesomorphic systems are the subject of interest from the viewpoint of rheology. Since the discovery by Lehmann (1) in the end of the last century, pretty many investigations concerning flow properties of liquid crystals, especially viscosity studies on these substances have been carried out (2). However, relatively few data on flow properties of smectic liquid crystals, i.e. soap-like substances, in their molten states have been reported. In the present paper the flow properties of some ammonium salts of higher normal carboxylic acids in their mesomorphic states will be described and discussed.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1).
    Lehmann, O., Z. physik. Chem. 4, 462 (1889)Google Scholar
  2. Lehmann, O., Z. physik. Chem. 5, 427 (1890).Google Scholar
  3. 2)).
    Brown, G. H. and W. G. Shaw, Chem. Rev. 57, 1049 (1957). — Porter, R. S. and J. F. Johnson, The Rheology of Liquid Crystals. In: Rheology IV, Chapt. 5, ed. by F. Eirich (New York 1968).CrossRefGoogle Scholar
  4. 3).
    cf. Lawrence, A. C. S., Trans. Farad. Soc. 34, 660 (1938); The Faraday Society’s General Discussion on Liquid Crystals and Anisotropic Melts, p. 1008 (1933).Google Scholar
  5. 4).
    Ostwald, Wo., The Faraday Society’s General Discussion on Liquid Crystals and Anisotropic Melts, p. 1002 (1933). — Porter, R. S. and J. F. Johnson, loc. cit.Google Scholar
  6. 5).
    Sakamoto, K., R. S. Porter, and J. F. Johnson, Proc. 2nd Intern. Conf. on Liquid Crystals, Part 1, 237 (1968). — Fukada, E., unpublished, private communication.Google Scholar
  7. 6).
    Herzog, R. O. and H. Kudar, The Faraday Society’s General Discussion on Liquid Crystals and Anisotropic Melts, p. 1006 (1933).Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1975

Authors and Affiliations

  • B. Tamamushi
    • 1
  1. 1.Nezu Chemical InstituteMusashi UniversityNerimaku TokyoJapan

Personalised recommendations