Applied Liquid Crystal Polymers

Author : A.A. Collyer
Publisher : Springer Science & Business Media
Page : 486 pages
File Size : 55,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401118705

Get Book

Liquid Crystal Polymers: From Structures to Applications by A.A. Collyer Pdf

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.

Author : Anonim
Publisher : CRC Press
Page : 202 pages
File Size : 40,8 Mb
Release : 1989
Category : Electronic
ISBN : 2881243231

Get Book

Applied Liquid Crystal Polymers by Anonim Pdf

Author : P. M. Visakh,Artem Semkin,Zeynep Guven Ozdemir
Publisher : Woodhead Publishing
Page : 306 pages
File Size : 54,9 Mb
Release : 2022-01-06
Category : Technology & Engineering
ISBN : 9780128221631

Get Book

Liquid Crystal Polymer Nanocomposites by P. M. Visakh,Artem Semkin,Zeynep Guven Ozdemir Pdf

Liquid Crystal Polymer Nanocomposites summarizes, in a comprehensive manner, numerous modern technical research accomplishments on the development of nanocomposites from liquid crystalline polymers. It emphasizes various studies at the nano-scale, including discussions of liquid crystalline block copolymers, liquid crystalline epoxy nanocomposites, barrier property studies of liquid crystalline epoxy and their nanocomposites, liquid crystalline polymer-based microfibrillar and nanofibrillar composites, liquid crystalline polymer/nanoplatelet nanocomposites, liquid-crystalline elastomer/graphene oxide nanocomposites, and thermotropic liquid crystalline polymers. It provides detailed information on methods of preparation, the properties of these materials and a discussion on the structure-properties relationship. With an emphasis on data and experimental results, the book's authors illustrate how the liquid crystal structure can have an impact on the final properties of nanocomposite. Contains contributions from leading experts working in this specialized field of research Provides detailed information on the preparation, characterization and application of nanocomposites of liquid crystalline polymers Presents solutions to both fundamental and applied problems

Author : G P Crawford,S Zumer
Publisher : CRC Press
Page : 526 pages
File Size : 48,9 Mb
Release : 1996-04-29
Category : Science
ISBN : 9781482272796

Get Book

Liquid Crystals In Complex Geometries by G P Crawford,S Zumer Pdf

Focusing on the applied and basic aspects of confined liquid crystals, this book provides a current treatise of the subject matter and places it in the broader context of electrooptic applications.

Author : Ingo Dierking
Publisher : Royal Society of Chemistry
Page : 387 pages
File Size : 55,5 Mb
Release : 2019-01-03
Category : Science
ISBN : 9781782629825

Get Book

Polymer-modified Liquid Crystals by Ingo Dierking Pdf

A state-of-the-art account of current developments in polymer-dispersed liquid crystals and polymer-stabilized liquid crystals research.

Author : David C. Bassett
Publisher : Springer Science & Business Media
Page : 351 pages
File Size : 54,9 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9789400913417

Get Book

Developments in Crystalline Polymers—2 by David C. Bassett Pdf

Modern society makes increasing demands for novelty in materials and their properties which are ever more exacting. Crystalline polymers are in the forefront of this demand and improvements are constantly occurring across the entire range from existing materials of high tonnage to novel materials with application in information technology. The developments recorded in this volume reflect this situation. Chapter 1 is a comprehensive review of the polymer PHB, poly(hydroxybutyrate), which is new to industrial manufacturing but is a naturally occurring substance. It has potentially valuable properties but has excited interest especially because it is biodegradable. It may, therefore, provide one means of reducing environmental pollution. Improvements in existing materials, beyond those which are ob tainable by optimization of known variables, are most likely to come from understanding of structure-property relationships. Polymer is able to make effective science has now reached the stage where it synthesis of information from complementary techniques, leading to rapidly deepening understanding. Chapters 2, 3 and 4 are all con cerned with technical developments which are contributing substan tially to this synthesis. The possibilities of electron microscopy, specifically the characterization of lamellar microstructure, have been transformed by permanganic etching. Now real organization (which can be very different from what had previously been inferred) can be used as a basis for explaining polymeric properties. In Chapter 3, Mitchell and Windle give a critical account of the assessment of orientation in liquid crystalline polymers, a rapidly developing new field in which they have played a leading part.

Author : A. M. Donald,A. H. Windle,S. Hanna
Publisher : Cambridge University Press
Page : 616 pages
File Size : 43,7 Mb
Release : 2006-05-11
Category : Science
ISBN : 0521580013

Get Book

Liquid Crystalline Polymers by A. M. Donald,A. H. Windle,S. Hanna Pdf

A 2006 edition explaining the underlying science and applications of liquid crystalline polymers.

Author : Tai-Shung Chung
Publisher : CRC Press
Page : 392 pages
File Size : 52,6 Mb
Release : 2001-03-01
Category : Technology & Engineering
ISBN : 1420012525

Get Book

Thermotropic Liquid Crystal Polymers by Tai-Shung Chung Pdf

Liquid crystal polymers are sometimes called super polymers--with good reason. Their wide range of exceptional properties and ease of processing make them design candidates for many demanding applications. This new book provides a thorough review of LCP technology with the emphasis on the chemistry, synthesis and characterization of the material in its many variants. Additional chapters cover processing and applications. From the Editor's Preface The field of thermotropic liquid crystalline polymers has grown substantially in the last two decades, with fundamental research, publications, commercial products, and patents. In the 1980's, Dr. Ralph Miano led my colleagues and me at Hoechst Celanese in commercializing the first thermotropic liquid crystalline polymers, based on Dr. Gordon Calundann's composition patents. Today, more than seven companies have produced thermotropic liquid crystalline polymer materials, with at least 50 variants available. Hence, it is timely to compile a comprehensive review on the nature of this type of material and the ongoing progress in this field.... The goals of this book are to summarize previous work, provide new insights into this class of polymers, and add to the understanding of the formation of liquid crystallinity. This book covers a wide range of topics and addresses different disciplines in the field. The chapters are arranged as a learning scheme for the professional, from basic science to applied engineering. The first few chapters summarize the syntheses of various polyester, polyester-amid, and polyimide liquid crystalline polymers. The science and origins of liquid crystal formation are revealed. Next, we introduce the characterizations of these materials by their different chemical and physical aspects. Because most commercially available thermotropic liquid crystalline polymers have been used in the form of composites, we have also incorporated a chapter on polymer blends, detailing blending mechanisms and resultant properties. Two chapters on thermosetting liquid crystalline polymers integrate them with other topics, because of their unique importance and their applications for microelectronics and packaging. The final chapter deals with the engineering and processing aspects of thermoplastic liquid crystalline polymers for a variety of applications.

Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 55,7 Mb
Release : 1987
Category : Electronic
ISBN : OCLC:35917097

Get Book

Liquid Crystal Polymers by Anonim Pdf

Author : Francesco Paolo La Mantia
Publisher : CRC Press
Page : 196 pages
File Size : 42,8 Mb
Release : 1993-12-04
Category : Technology & Engineering
ISBN : 0877629609

Get Book

Thermotropic Liquid Crystal Polymer Blends by Francesco Paolo La Mantia Pdf

In recent years, studies by both industry and academic researchers have opened the door to improving performance and reducing costs of these new materials. The particular structure and morphology of LCPs, as well as their peculiar rheological behavior, have stimulated researchers to develop new theoretical models and new characterization and processing techniques to more fully understand and utilize LCPs. Although the scientific literature is very rich in data on the synthetic techniques and on the relations between structure and phase behavior of these new polymers, the understanding of the rheological and processing aspects is still far from satisfactory-particularly in the case of LCP blends. In fact, although an appreciable number of patents and scientific papers have appeared describing the phase behavior, the rheology, and the mechanical properties of many of these polyblends, several aspects of the relations between processing and morphology, and between morphology and properties of these materials are still obscure or even controversial. Now, this new book, written by leading researchers, provides an up-to-date guide and reference to the processing, rheology and applications of pure LCPs and LCP blends. The book concisely reviews the synthetic procedures for the production of LCPs and discusses the rheological behavior and processing methods. Plus, the book examines present and future applications areas of LCPs and LCP blends.

Author : Xin-jiu Wang,Qi-feng Zhou
Publisher : World Scientific Publishing Company
Page : 388 pages
File Size : 46,8 Mb
Release : 2004-04-14
Category : Technology & Engineering
ISBN : 9789813106161

Get Book

Liquid Crystalline Polymers by Xin-jiu Wang,Qi-feng Zhou Pdf

This textbook consists of six chapters. The first chapter highlights the concept of liquid crystals, including chemical structure, phase classification, defect and texture, and continuum theory. It has been carefully written to meet the needs of readers who do not specialize in liquid crystals. The second chapter is related to the theoretical description of liquid crystalline polymers, networks, and gels, which deals with subjects such as the formation of liquid crystallinity in the polymer system, the phase transition and phase diagram, the molecular weight effect, chain conformation, physics properties, etc. In Chapter 3, the molecular engineering of liquid crystalline polymers is introduced. The molecular composition and the molecular weight play essential roles in the molecular design, which are reviewed in detail. In addition, some unusual liquid crystalline polymers are discussed. Chapter 4 is devoted to the phase identification of liquid crystalline polymers. The techniques involved cover polarizing microscopy, thermal analysis, X-ray diffraction, and other areas. Chapters 5 and 6 summarize the properties and applications of liquid crystalline polymers: Chapter 5 deals mainly with mechanical performance in fiber and composites; Chapter 6 presents the elasticity, viscosity and rheology of liquid crystalline polymers, as well as other important properties.

Author : Manfred Gordon,N. A. Platé
Publisher : Unknown
Page : 128 pages
File Size : 48,7 Mb
Release : 1984
Category : Electronic
ISBN : OCLC:923073456

Get Book

Liquid Crystal Polymers by Manfred Gordon,N. A. Platé Pdf

Author : Vijay Kumar Thakur,Michael R. Kessler
Publisher : Springer
Page : 535 pages
File Size : 40,5 Mb
Release : 2015-08-25
Category : Technology & Engineering
ISBN : 9783319202709

Get Book

Liquid Crystalline Polymers by Vijay Kumar Thakur,Michael R. Kessler Pdf

This book introduces various applications of liquid crystalline polymers as the emerging new class of high performance novel materials. The authors detail the advantageous properties of these LCs including optical anisotropic, transparency and easy control over structure. This interdisciplinary work includes valuable input from international projects with special focus on the use of liquid crystalline polymers and/or nanocomposites.

Author : Domenico Acierno,A.A. Collyer
Publisher : Springer Science & Business Media
Page : 331 pages
File Size : 46,6 Mb
Release : 2013-11-27
Category : Technology & Engineering
ISBN : 9789400915114

Get Book

Rheology and Processing of Liquid Crystal Polymers by Domenico Acierno,A.A. Collyer Pdf

Liquid crystal polymers (LCPs) have many strange properties that may be utilized to advantage in the processing of products made from them and their blends with isotropic polymers. This volume (volume 2 in the series Polymer Liquid Crystals) deals with their strange flow behaviour and the models put forward to explain the phenomena that occur in such polymers and their blends. It has been known for some time that small ad ditions of a thermotropic LCP to isotropic polymers not only gives an improvement in the strength and stiffness of the blend but improves the processability of the blend over that of the isotropic polymer. In the case of lyotropic LCPs, it is possible to create a molecular composite in which the reinforcement of an isotropic polymer is achieved at a molecular level by the addition of the LCP in a common solvent. If the phenomena can be fully understood both the reinforcement and an increase in the proces sability of isotropic polymers could be optimized. This book is intended to illustrate the current theories associated with the flow of LCPs and their blends in the hope that such an optimization will be achieved by future research. Chapter 1 introduces the subject of LCPs and describes the ter minology used; Chapter 2 then discusses the more complex phenomena associated with these materials. In Chapter 3, the way in which these phe nomena may be modelled using hamiltonians is fully covered.

Author : L. L. Chapoy
Publisher : Springer Science & Business Media
Page : 334 pages
File Size : 49,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400949348

Get Book

Recent Advances in Liquid Crystalline Polymers by L. L. Chapoy Pdf

This volume contains an eclectic collection of 22 papers on liquid crystalline polymers presented at the Sixth Polymer Workshop, in the series sponsored by the European Science Foundation, entitled: 'Liquid Crystal Polymer Systems', in Gentofte, Denmark, 12-14 September 1983. Since a contribution to this volume was strictly voluntary, and in some cases represents a considerably expanded version of that which was presented, it is strictly speaking not correct to term this a 'proceedings'. A description of the aims and purposes of the European Science Foundation with respect to the polymer area has been presented in: Shell Polymers, Vol. 5, No.2, pp. 34-35, 1981. The papers given here represent a cross-section of current research interests in liquid crystalline polymers in the areas of theory, synthesis, characterization, structure-property relationships and applications. At least some of the current interest is motivated by attempts to practically exploit the novel properties of these materials in the developing tech nologies of high strength fibres and advanced materials for constructional purposes, but also for functional materials in the areas of information retrieval, electronics and opto-electronics applications. The editor wishes to thank all those involved for their courtesy and co-operation.