Mechanical and Thermophysical Properties of Polymer Liquid Crystals

1. Front Matter

   Pages i-xiv

   PDF

2. Formation of polymer liquid crystals

   1. Front Matter

      Pages 1-1

      PDF

   2. Creation of liquid crystalline phases: a comparative view emphasizing structure and shape of monomer liquid crystals

      • Richard G. Weiss

      Pages 3-40

   3. Inorganic polymer liquid crystals

      • Cameron G. Cofer, James Economy

      Pages 41-58

   4. Design of polymer liquid crystals with non-covalent bonds

      • C. Géraldine Bazuin

      Pages 59-100

   5. Morphology of Thermotropic Longitudinal Polymer Liquid Crystals

      • Yang Zhong

      Pages 101-123

   6. Polymer liquid crystals in solution

      • Lydia Fritz, Joachim Rübner, Jürgen Springer, Dietmar Wolff

      Pages 124-143

3. Thermophysical properties

   1. Front Matter

      Pages 145-145

      PDF

   2. Memory effects in polymer liquid crystals: influence of thermal history of phase behavior

      • Rita B. Blumstein

      Pages 147-171

   3. Longitudinal polymer liquid crystal + engineering polymer blends: miscibility and crystallization phenomena

      • George P. Simon

      Pages 172-213

   4. Thermal expansivity

      • Ram Prakash Singh

      Pages 214-252

4. Mechanical properties

   1. Front Matter

      Pages 253-253

      PDF

   2. Phase diagrams of polymer liquid crystals and polymer liquid crystal blends: relation to mechanical properties

      • Michael Hess, Betty L. López

      Pages 255-305

   3. Development and relaxation of orientation in pure polymer liquid crystals and blends

      • Ulf W. Gedde, Göran Wiberg

      Pages 306-341

   4. Flow induced phenomena of lyotropic polymer liquid crystals: the negative normal force effect and bands perpendicular to shear

      • Gabor Kiss, Roger S. Porter

      Pages 342-406

   5. Creep and stress relaxation

      • Josef Kubát, Robert D. Maksimov

      Pages 407-430

   6. Thermoreversible gelation of rigid rod-like and semirigid polymers

      • Andreas Greiner, Willie E. Rochefort

      Pages 431-447

   7. Elastic moduli of polymer liquid crystals

      • C. L. Choy

      Pages 448-494

   8. Computer simulations

      • Witold Brostow

      Pages 495-510

5. Back Matter

   Pages 511-520

   PDF

may never overcome the effects of hysteresis and stress (see Chapters 6 and 12). The first sentence of the reference work, Handbook of Liquid Crystals, reads: The terms liquid crystals, crystalline liquid, mesophase, and mesomorphous state are used synonymously to describe a state of aggregation that exhibits a molecular order in a size range similar to that of a crystal but acts more or less as a viscous liquid: [2] In other words, molecules within a liquid crystalline phase possess some orientational order and lack positional order; furthermore, the shape of a liquid crystalline sample is determined by the vessel in which it is contained rather than by the orientational order of its aggregated molecules. The authors recognized the limitations and imprecision of this definition but, like others preceding them, could not devise a simple and generally applicable one that is better. Regardless, the terms 'liquid crystal' and 'mesophase' should not be used interchangeably. As mentioned above, all liquid crystals are mesophases, but all mesophases are not liquid crystals. Recent studies, employing elaborate and sophisticated analytical techniques, have permitted finer distinctions between classical crystals and mesophases. At the same time, they have made definitions like that from the Handbook of Liquid Crystals somewhat obsolete for reasons other than terminology. One part of the problem arises from the use of a combination of bulk properties (like flow) and microscopic properties (like molecular ordering) within the same definition.

• computer
• crystal
• liquid
• liquid crystals
• morphology
• polymer

• Department of Materials Science, University of North Texas, Denton, USA

  Witold Brostow

Policies and ethics