Thermotropic liquid-crystalline polymers with mesogenic side groups

  • Valery P. Shibaev
  • Nicolai A. Platé
Conference paper

DOI: 10.1007/3-540-12994-4_4

Part of the Advances in Polymer Science book series (POLYMER, volume 60/61)
Cite this paper as:
Shibaev V.P., Platé N.A. (1984) Thermotropic liquid-crystalline polymers with mesogenic side groups. In: Platé N.A. (eds) Liquid Crystal Polymers II/III. Advances in Polymer Science, vol 60/61. Springer, Berlin, Heidelberg

Abstract

The article covers synthesis, structure and properties of thermotropic liquid-crystalline (LC) polymers with mesogenic side groups. Approaches towards the synthesis of such systems and the conditions for their realization in the LC state are presented, as well as the data revealing the relationship between the molecular structure of an LC polymer and the type of mesophase formed. Specific features of thermotropic LC polymers and copolymers of nematic, smectic and cholesteric types are considered.

The possibility to affect the structure of an LC polymer by the influence of electric and magnetic fields is demonstrated. The kinetics and the mechanism of structural rearrangements are discussed.

The initial steps of mesophase formation in dilute solutions of polymers are examined.

List of Abbreviations and Main Symbols

LC

Liquid Crystalline

K

Crystalline State

N, S, Ch

Nematic, Smectic and Cholesteric Phases, respectively

Chol

Cholesterol group

PChMA-n and PChMO-n

Cholesterol esters of poly-N-methacryloyl-ω-amino-carboxylic and ω-oxycarboxylic acids, respectively

A-n and Pa-n

n-Alkyl Acrylates and Poly-n-Alkylacrylates

MA-n and PMA-n

n-Alkyl Methacrylates and Poly-n-Alkyl Methacrylates

IMM

Intramolecular Mobility

Ef, EA and Eor

Activation energies of the viscous flow, dielectric relaxation process and orientational process in an electric field

Ed.pb and Ed.ps

Activation energies of the dipole polarization in bulk and solution

τd.pb and τd.ps

Relaxation times of the dipole polarization in bulk and solution

fR

Dielectric relaxation frequency

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Copyright information

© Springer-Verlag 1984

Authors and Affiliations

  • Valery P. Shibaev
    • 1
  • Nicolai A. Platé
    • 1
  1. 1.Department of ChemistryMoscow State UniversityMoscowUSSR

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