Skip to main content
SpringerLink
Log in

Physical Studies of a Series of Main-Chain Liquid Crystalline Polymers With Long Soft Segment

  • Published:
MRS Online Proceedings Library Aims and scope

Abstract

A series of main-chain liquid crystalline polymers with long and polydisperse soft segments has been synthesized. The thermal properties of these polymers have been characterized by differential scanning calorimetry, optical microscopy and wide angle X-ray diffraction. Unexpectedly, these polymers have a strong tendency to form purely smectic mesophases. The degree of ordering of these polymeric mesophases is much higher than that of the mesophase formed by a low molecular weight model compound with the same mesogen. The soft segment length effects on thermal behavior of such segmented copolymers have been elucidated. A semi-quantitative theory has been formulated to interpret these observations. A phase diagram relating thermal properties to soft segment length has been proposed.

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. C. Noel and P. Navard, Prog. Polym. Sci., 16, 55 (1991).

    Article  CAS  Google Scholar 

  2. Z. Jedlinski, J. Franee, A. Kulczycki, A. Sigiru and C. Carfagna, Macromol., 22, 1600 (1989).

    Article  CAS  Google Scholar 

  3. P. P. Wu, S. L. Hsu, O. Thomas and A. Blumstein, J. Polym Sci. Part B, Polym. Phys., 24, 827 (1986).

    Article  CAS  Google Scholar 

  4. A. Y. Bilibin and O. N. Piraner, MakromoL Chem., 192, 201 (1991).

    Article  CAS  Google Scholar 

  5. E. S. Kolb, PhD Dissertation, University of Massachusetts, Ameherst, 1991.

    Google Scholar 

  6. V. Percec and A. Keller, Macromol., 23, 4347 (1990).

    Article  CAS  Google Scholar 

  7. C. P. Lillya, B. Wu, E. S. Kolb and R. S. Stein, Macromol., will be submitted.

Download references

Acknoledgments

Financial support for this work by CUMUP program in University of Massachusetts is gratefully acknowledged.

Author information

Authors and Affiliations

  1. Chemistry Department, University of Massachusetts, Amherst, MA, 01003, USA

    Bing WU, C. Peter Lillya & Richard S. Stein

Authors
  1. Bing WU
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. C. Peter Lillya
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Richard S. Stein
    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

WU, B., Lillya, C.P. & Stein, R.S. Physical Studies of a Series of Main-Chain Liquid Crystalline Polymers With Long Soft Segment. MRS Online Proceedings Library 321, 87–91 (1993). https://doi.org/10.1557/PROC-321-87

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1557/PROC-321-87

Search

Navigation