Skip to main content
SpringerLink
Log in

Microstructure and Morphology of Thermotropic Amphiphilic Liquid Crystalline Materials

  • Published:
MRS Online Proceedings Library Aims and scope

Abstract

Electron microscopy methods have been used to investigate the structure and morphology of a hexagonal columnar mesophase, formed by novel amphiphilic and dendrimeric liquid crystals. Alignment of the columns is examined by a surface condition that is suitable for the molecular architecture. For all the materials investigated, columns aligned perpendicular to an evaporated carbon surface. In the case of asymmetric amphiphilic compounds, planar alignment of asymmetric compounds was induced by a water surface. However, planar alignment on water was not possible for a symmetric dendrimer. Based on analysis of electron diffraction and images, the dimension and the stiffness of columnar assemblies is found to depend on molecular architecture.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. A. Klug, Angew. Chem. Int. Ed. Engl. 22, 565 (1983).

    Article  Google Scholar 

  2. M. Suarez, J.-M. Lehn, S. C. Zimmerman, A. Skoulios and B. Heinrich, J. Am. Chem. Soc. 120, 9526 (1998).

    Article  CAS  Google Scholar 

  3. V. Percec, J. Heck, G. Johansson and D. Tomazos, Macromol. Symp. 77, 237 (1994).

    Article  CAS  Google Scholar 

  4. G. M. Whitesides, J. P. Mathias and C. T. Seto, Science 254, 1312 (1991).

    Article  CAS  Google Scholar 

  5. G. M. Whitesides, E. M. Simanek, J. P. Mathias, C. T. Seto, D. N. Chin, M. Mammen and D. M. Gorman, Acc. Chem. Res. 28, 37 (1995).

    Article  CAS  Google Scholar 

  6. V. Percec, D. Schlueter, G. Ungar, S. Z. D. Cheng and A. Zhang, Macromolecules 31, 1745 (1998).

    Article  CAS  Google Scholar 

  7. V. Percec and G. Johansson, Macromol. Symp. 96, 173 (1995).

    Article  CAS  Google Scholar 

  8. G. Johansson, V. Percec, G. Ungar and J.P. Zhou, Macromolecules 29, 646 (1996).

    Article  CAS  Google Scholar 

  9. V. Percec, G. Johansson, G. Ungar and J. Zhou, J. Am. Chem. Soc. 118, 9855 (1996).

    Article  CAS  Google Scholar 

  10. K. Borisch, S. Diele, P. Goring, H. Muller, and C. Tschierske, Liq. Cryst. 22, 427 (1997).

    Article  CAS  Google Scholar 

  11. D. Adam, P. Schuhmacher, J. Simmerer, L. Haussling, K. Siemensmeyer, K. H. Etzbach, H. Ringsdoif, D. Haarer, Nature 371, 141 (1994).

    Article  CAS  Google Scholar 

  12. H. Gankema, M. A. Hempenius, M. Moller, G. Johansson, V. Percec, Macromol. Symp. 102, 381 (1996).

    Article  CAS  Google Scholar 

  13. S. D. Hudson, H.-T. Jung, V. Percec, W.-D. Cho, G. Johansson, G. Ungar, V. S. K. Balagurusamy, Science 278, 449 (1997).

    Article  CAS  Google Scholar 

  14. V. Percec, P. Moiser, G. Ungar, V. S. K. Balagurusamy, in preparation.

  15. D. C. Martin and E. L. Thomas, Polymer 36, 1743 (1995).

    Article  CAS  Google Scholar 

  16. H.-T. Jung, S. D. Hudson, R. W. Lenz, Macromolecules 31, 637 (1998).

    Article  CAS  Google Scholar 

  17. L. C. Sawyer, D. T. Grubb, Polymer Microscopy (Chapman and Hall, New York, 1987).

    Book  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Chemical Engineering and Materials, University of California, Santa Barbara, CA, 93106-5080, USA

    Hee-Tae Jung

  2. Department of Macromolecular Science, Case Western Reserve University, Cleveland, OH., 44106, USA

    Steven D. Hudson & Virgil Percec

Authors
  1. Hee-Tae Jung
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Steven D. Hudson
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Virgil Percec
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Hee-Tae Jung.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Jung, HT., Hudson, S.D. & Percec, V. Microstructure and Morphology of Thermotropic Amphiphilic Liquid Crystalline Materials. MRS Online Proceedings Library 559, 189–194 (1999). https://doi.org/10.1557/PROC-559-189

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1557/PROC-559-189

Search

Navigation