Author : Alan Gabriele Stefan Hollander
Publisher :
Page : 138 pages
File Size : 20,90 MB
Release : 1998
Category : Deuteron magnetic resonance spectroscopy
ISBN :
Author : George Floudas
Publisher : Springer Science & Business Media
Page : 183 pages
File Size : 12,42 MB
Release : 2010-11-25
Category : Technology & Engineering
ISBN : 3642049028
Pressure is one of the essential thermodynamic variables that, due to some former experimental difficulties, was long known as the “forgotten variable.” But this has changed over the last decade. This book includes the most essential first experiments from the 1960's and reviews the progress made in understanding glass formation with the application of pressure in the last ten years. The systems include amorphous polymers and glass-forming liquids, polypeptides and polymer blends. The thermodynamics of these systems, the relation of the structural relaxation to the chemical specificity, and their present and future potential applications are discussed in detail. The book provides (a) an overview of systems exhibiting glassy behavior in relation to their molecular structure and provides readers with the current state of knowledge on the liquid-to-glass transformation, (b) emphasizes the relation between thermodynamic state and dynamic response and (c) shows that the information on the pressure effects on dynamics can be employed in the design of materials for particular applications. It is meant to serve as an advanced introductory book for scientists and graduate students working or planning to work with dynamics. Several scientific papers dealing with the effects of pressure on dynamics have appeared in leading journals in the fields of physics in the last ten years. The book provides researchers and students new to the field with an overview of the knowledge that has been gained in a coherent and comprehensive way.
Author : A.A. Collyer
Publisher : Springer
Page : 504 pages
File Size : 46,71 MB
Release : 1992-12-31
Category : Science
ISBN :
This study describes the nature of LCPs, their syntheses, characterization, properties and finally their application. It discusses the way in which liquid crystallinity or mesomorphism occurs in small molecules, monomer liquid crystals and polymer liquid crystals.
Author : Seunghee Lee
Publisher :
Page : 224 pages
File Size : 11,17 MB
Release : 1994
Category : Electron paramagnetic resonance
ISBN :
Author : Witold Brostow
Publisher : Springer Science & Business Media
Page : 542 pages
File Size : 39,95 MB
Release : 1998-02-28
Category : Technology & Engineering
ISBN : 9780412609008
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.
Author : Ingo Dierking
Publisher : Royal Society of Chemistry
Page : 386 pages
File Size : 48,31 MB
Release : 2019-01-03
Category : Science
ISBN : 1782629823
Describing all aspects of polymer-dispersed and polymer-stabilized liquid crystals, this book is a must-have resource for practitioners in the area.
Author : Avraam I. Isayev
Publisher : John Wiley & Sons
Page : 528 pages
File Size : 29,4 MB
Release : 2016-06-07
Category : Science
ISBN : 3527653996
A complete and timely overview of the topic, this Encyclopedia imparts knowledge of fundamental principles and their applications for academicians, scientists and researchers, while informing engineers, industrialists and entrepreneurs of the current state of the technology and its utilization. The most comprehensive source on polymer blends available on the market Offers a complete and timely overview of the topic Each article presents up to date research & development on a topic and its basic principles and applications, integrates case studies, laboratory and pilot plant experiments, and gives due reference to published and patented literature Equips academics, scientists and researchers with knowledge of fundamentals principles and their applications, and informs the engineers, industrialists and entrepreneurs about the state of the art technology and its applications
Author : Morteza Sasani Ghamsari
Publisher : BoD – Books on Demand
Page : 200 pages
File Size : 30,51 MB
Release : 2020-10-07
Category : Science
ISBN : 1789853672
Liquid crystals have attracted scientific attention for potential applications in advanced devices. Display technology is continuously growing and expanding and, as such, this book provides an overview of the most recent advances in liquid crystals and displays. Chapters cover such topics as nematic liquid crystals, active matrix organic light-emitting diodes, and tetradentate platinum(II) emitters, among others.
Author : Satyen Kumar
Publisher : Cambridge University Press
Page : 530 pages
File Size : 30,10 MB
Release : 2001
Category : Reference
ISBN : 9780521461320
This 2001 book provides hands-on details of several important techniques for the study of liquid crystals.
Author : Valery P. Shibaev
Publisher : Springer Science & Business Media
Page : 378 pages
File Size : 41,87 MB
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 1461383331
Among the various new directions in modern polymer science, the design and investigation of liquid crystal (LC) polymers have been the ones growing most actively and fruitfully. In spite of that, the possible formation of an anisotropic LC phase was only demonstrated theoretically for the first time in the 1950s by Onsager [1] and Flory [2], and then experimentally verified in the studies with polypeptides solutions. In essence, the studies of these LC lyotropic systems did not deviate from the theme of purely academic interest. It was at the beginning of the 1970s that the experimental "explosion" occurred, when aromatic polyamides were synthesized and their ability to form LC solutions in certain very aggressive solvents was discovered. The search for practical applications of such LC systems was crowned with the successful creation of the new generation of ultrastrong high-modulus ther mostable fibers, such as the Kevlar, due to the high degree of order of the macromolecules in the anisotropic LC state. In fact, these investigations coincided with the swift emergence on the practical "scene" of thermotropic low-molar-mass liquid crystals, with the use of these materials in microelectronics and electro optics (figures and let ters indicators, displays in personal computers, and flat TV, etc.). Polymer scientists also began to develop methods of synthesizing thermotropic LC polymers by incorporating mesogenic fragments in the main (main-chain LC polymers) or side branchings of the macromolecules (side-chain or comb shaped polymers).
