Skip to main content
SpringerLink
Log in

Polymers with terminally cyanobiphenyl-substituted side chains

A re-entrant polymorphism N SA NRe

  • Published:
Polymer Bulletin Aims and scope Submit manuscript

Summary

Two acrylate side chain polymers in which the mesogenic moiety is a 4′-cyano-biphenyl-4-yl group have been synthesized and characterized by d.s.c., optical microscopy and X-ray diffraction. If the mesogenic moiety is linked to the polymer backbone by a -O-CO-(CH2)-5 group, the resultant polymer is nematic. For a -O-(CH2)-6 group, the unusual NSANre sequence is observed. X-ray diffraction has shown that the SA phase has a partially bilayer structure : the molecules are arranged in an antiparallel, overlapping interdigitated structure with a layer spacing of about 1.4 times the length of the side chains. Monolayer fluctuations are also observed in this SA phase.

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. W.H. de Jeu, Solid State Commun. 41, 529 (1982)

    Google Scholar 

  2. D. Guillon, P.E. Cladis and J. Stamatoff, Phys. Rev. Lett. 41, 1598 (1978)

    Article  Google Scholar 

  3. F. Hardouin, A.M. Levelut and G. Sigaud, J. Physique, 42, 71 (1981)

    Google Scholar 

  4. P. Le Barny, J.C. Dubois, C. Friedrich and C. Noël, to be published

  5. D. Demus and L. Richter “Textures of Liquid Crystals”, Verlag Chemie, Weinheim, 1978

    Google Scholar 

  6. S.G. Kostromin, Z. Tsch. Efendieva, R.V. Talroze, V.P. Shibaev and N.A. Platé, Proceedings of the 6 th Liquid Crystal Conference of Socialist Countries, Halle, Abstract D 26, 1985

  7. F. Hardouin, A.M. Levelut, M.F. Achard and G. Sigaud, J. Physique, 80, 53 (1983)

    Google Scholar 

  8. J.E. Lydon and C. Coakley, J. Physique, Colloque 36, C1–45 (1975)

    Google Scholar 

  9. A.J. Leadbetter, J.C. Frost, J.P. Gaughan, G.W. Gray and A. Mosley, J. Physique, 40, 375 (1979)

    Google Scholar 

  10. P. Le Barny, J.C. Dubois, R. Njeumo, J.P. Parneix, C. Legrand, to be published in Liquid Crystals.

  11. A.M. Levelut and C. Druon, J. Physique Lett. 43, L-193 (1982)

    Google Scholar 

  12. C. Legrand, J.P. Parneix, A. Chapoton, N.H. Tinh and C. Destrade, J. Physique Lett. 45, L-283 (1984)

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Laboratoire de Chimie, Thomson-CSF, Domaine de Corbeville, BP10, F-91400, Orsay Cedex, France

    Pierre Le Barny & Jean-Claude Dubols

  2. Laboratoire de Physicochimie Structurale et Macromoléculaire, 10, rue Vauquelin, F-75231, Paris Cedex 05, France

    Claude Friedrich & Claudine Noël

Authors
  1. Pierre Le Barny
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Jean-Claude Dubols
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Claude Friedrich
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Claudine Noël
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Le Barny, P., Dubols, JC., Friedrich, C. et al. Polymers with terminally cyanobiphenyl-substituted side chains. Polymer Bulletin 15, 341–348 (1986). https://doi.org/10.1007/BF00254853

Download citation

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00254853

Keywords

Search

Navigation