Advances in Liquid Crystals (eBook)

Volume 2

Glenn H. Brown (Herausgeber)

eBook Download: PDF

2013 | 1. Auflage
320 Seiten
Elsevier Science (Verlag)
978-1-4831-9134-8 (ISBN)

Infos

Advances in Liquid Crystals, Volume 2 covers the study of lyotropic and thermotropic liquid crystals. The five articles in this volume discuss topics such as the effects of change in molecular geometry on the properties of liquid crystals formed by nonamphiphilic (thermotropic) compounds; aspects of the physics and chemistry of cholesteric liquid crystals with respect to temperature dependence and temperature sensitivity of the selective reflection of visible light; arrangements of emulsifier molecules and the interaction between the different components in emulsions; the type of information about liquid crystals obtained from vibrational spectroscopy; and the continuum theory of liquid crystals as it applies to static equilibrium. The book will be invaluable to materials engineers, inventors, physicists, and researchers in the field of electronics.

Inhalt

Front Cover 1
Advances In Liquid Crystals 4
Copyright Page 5
Table of Contents 6
LIST OF CONTRIBUTORS 8
PREFACE 10
INTRODUCTION TO THE SERIES 11
CONTENTS OF VOLUME 1 12
Chapter 1. Molecular Geometry and the Properties of Nonamphiphilic Liquid Crystals 14
I. Introduction 14
II. General Requirements Relating to Molecular Shape 17
III. General Structural Features Common to Many Mesogens 23
IV. Mesogens Containing Alicyclic Rings 26
V. Mesogens Containing Heterocyclic Rings 30
VI. The Role of Terminal Substituents in Mesogens 36
VII. The Role of Lateral Substituents in Mesogens 52
VIII. The Role of the Central Group in Simple Mesogens 65
IX. Features of Molecular Structure Favoring Formation of Smectic or Nematic/Cholesteric Phases 71
X. Molecular Structural Effects on the Liquid Crystal Properties of Sterol Derivatives 75
References 80
Chapter 2. Selective Reflection of Cholesteric Liquid Crystals 86
I. Introduction 86
II. Physics of Cholesteric Mesophases 87
III. Chemistry of Cholesteric Liquid Crystals 110
IV. Temperature Dependence of Selective Reflection 138
V. Application 150
Chapter 3. Liquid Crystals and Emulsions 186
I. Prefatory Remarks 186
II. Arrangement of Emulsifier Molecules in the Solid State 187
III. Emulsions with a Crystalline Emulsifier at the Oil/Water Interface 189
IV. The Structure of Liquid Crystalline Phases of Emulsifiers 189
V. Phase Behavior of Different Types of Emulsifier-Water Systems 192
VI. Molecular Arrangement in Surface Films 195
VII. Water/Emulsifier Interaction 197
VIII. Emulsifier/Emulsifier Interaction 199
IX. Hydrocarbon/Emulsifier Interaction 202
X. Emulsion Stability 203
XI. Location of the Liquid Crystal 204
XII. Flocculation and Coalescence 206
XIII. van der Waals Forces 206
References 209
Chapter 4. Vibrational Spectroscopy of Liquid Crystals 212
I. Introduction 212
II. The Vibrational Spectrum as a Source of Information 213
III. Internal Vibrations in Nematic Phases 214
IV. Intermolecular Modes in Nematics and Nematogenic Crystals 226
V. Vibrational Spectra of Smectic Phases 235
VI. Vibrational Spectra of Cholesteric Phases 238
VII. Vibrational Spectra of Lyotropic Mesophases 240
References 242
Chapter 5. Equilibrium Theory of Liquid Crystals 246
I. Introduction 246
II. Energetics 249
III. Equilibrium Equations 270
IV. Linear Theory 280
V. Nonlinear Problems 283
VI. Linear Problems 302
References 306
SUBJECT INDEX 312

Produkt-Details

• Erscheint lt. Verlag: 22.10.2013
• Sprache: englisch
• Themenwelt: Naturwissenschaften ► Chemie
• Themenwelt: Naturwissenschaften ► Geowissenschaften ► Mineralogie / Paläontologie
• Themenwelt: Technik
• ISBN-10: 1-4831-9134-6 / 1483191346
• ISBN-13: 978-1-4831-9134-8 / 9781483191348