Polymer Bulletin

, Volume 44, Issue 4, pp 393–400

Synthesis of liquid crystalline rod-coil dimers based on poly(propylene oxide) coil

  • Byoung-Ki Cho
  • Ja-Hyoung Ryu
  • Wang-Cheol Zin
  • Myongsoo Lee

DOI: 10.1007/s002890070089

Cite this article as:
Cho, BK., Ryu, JH., Zin, WC. et al. Polymer Bulletin (2000) 44: 393. doi:10.1007/s002890070089

Summary

The synthesis and characterization of 4-[poly(propyleneoxy)propyloxy]-4'-bis[4-decyloxycarbonylbiphenyl-4'-biphenylcarboxylate] with poly(propylene oxide) coil of seven (dimer-7), twelve (dimer-12), seventeen (dimer-17), twenty one (dimer-21) are described. Dimer-7 with short length of poly(propylene oxide) coil exhibits successively smectic C, smectic A and nematic mesophases, while dimer-12 and dimer-17 with longer lengths of coils exhibit a bicontinuous cubic mesophase with Ia3d symmetry. Further increasing the length of coil, as in the case of dimer-21, suppresses liquid crystallinity.

Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • Byoung-Ki Cho
    • 1
  • Ja-Hyoung Ryu
    • 1
  • Wang-Cheol Zin
    • 2
  • Myongsoo Lee
    • 1
  1. 1.Department of Chemistry, Yonsei University, Shinchon 134, Seoul 120-749, KoreaKR
  2. 2.Department of Materials Science and Engineering, Pohang University of Science and Technology, Pohang 790-784, KoreaKR

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