Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1134
Book Description
Scientific and Technical Aerospace Reports
Author: Thermotropic Liquid Crystals
Author: George W. GrayPublisher:
ISBN:
Category : Science
Languages : en
Pages : 204
Book Description
Since the early 1970s, thermotropic liquid crystals have played a central role in molecular electronics and display devices. The discovery of liquid crystal polymers has lead to the development of high tensile strength fibres, and new liquid crystal technologies hold promise for advances in several other areas, such as large area displays for word processors, computer terminals, and temperature-sensing devices. This volume is designed to encourage collaboration among physicists, organic chemists, electronic engineers, and other specialists in the physical sciences in order to facilitate research and development in this field. It provides thorough coverage of the subject by experts in various areas, including detailed treatments of the structure and organization in various liquid crystal phases; the relations between their strongly anisotropic properties and molecular structure; and clear insights into their applications and the underlying physics involved in each. Each chapter begins by examining fundamental concepts, introducing newcomers in the field to the associated terminology and providing a basic understanding of its multidisciplinary nature.
Drexel Polymer Notes
Author: Liquid Crystal Elastomers
Author: Mark WarnerPublisher: Oxford University Press
ISBN: 9780199214860
Category : Mathematics
Languages : en
Pages : 423
Book Description
This text is a primer for liquid crystals, polymers, rubber and elasticity. It is directed at physicists, chemists, material scientists, engineers and applied mathematicians at the graduate student level and beyond.
Maro Polymer Notes
Author: Liquid Crystal Polymers: From Structures to Applications
Author: A.A. CollyerPublisher: Springer Science & Business Media
ISBN: 9401118701
Category : Science
Languages : en
Pages : 486
Book Description
The subject of liquid crystals and their use in electronic displays and in non-linear optical systems has become of tremendous importance during the last decade; and the incorporation of liquid crystal units into polymeric materials has led to a group of new materials with diverse properties. Some of these properties have been utilized in new products and some have yet to be used. Much published work has appeared that deals with specific materials or particular applications, and it was felt that a book was needed to examine and explain the underlying principles governing the diverse properties of these liquid crystal polymers, LCPs. The current work describes the diverse nature of LCPs, their synthesis, characterization, properties and finally their applications. It describes the manner in which liquid crystallinity or mesomorphism occurs in small molecules, monomer liquid crystals and polymer liquid crystals. Chapter 1 gives a classification of the various ways in which the meso gens may be connected to the polymer chains. Currently, the bulk of LCP material is based on main chain or longitudinal LCPs for use in engineering applications. The side chain or comb polymers are intended for use in electronics and opto-electronic systems and as surfactants. Many other variants and possibilities exist but their properties have not yet been fully studied or used. In this respect it is hoped that the current work will indicate future possibilities as well as discussing current opinion. v Preface vi Chapters 2 and 3 describe methods of characterizing the mesophases.
Engineered Materials Abstracts
Author: Mechanical and Thermophysical Properties of Polymer Liquid Crystals
Author: Witold BrostowPublisher: Springer Science & Business Media
ISBN: 1461557992
Category : Technology & Engineering
Languages : en
Pages : 534
Book Description
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.
American Doctoral Dissertations
Author: Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 896
Book Description
Author: