Advances in Liquid Crystals

Volume 2

1st Edition - October 28, 1976
Editor: Glenn H. Brown
Language: English
Hardback ISBN:
9 7 8 - 0 - 1 2 - 0 2 5 0 0 2 - 8
Paperback ISBN:
9 7 8 - 1 - 4 8 3 1 - 7 5 5 3 - 9
eBook ISBN:
9 7 8 - 1 - 4 8 3 1 - 9 1 3 4 - 8

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… Read more

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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.

List of Contributors

Preface

Introduction to the Series

Contents of Volume 1

Molecular Geometry and the Properties of Nonamphiphilic Liquid Crystals

I. Introduction

II. General Requirements Relating to Molecular Shape

III. General Structural Features Common to Many Mesogens

IV. Mesogens Containing Alicyclic Rings

V. Mesogens Containing Heterocyclic Rings

VI. The Role of Terminal Substituents in Mesogens

VII. The Role of Lateral Substituents in Mesogens

VIII. The Role of the Central Group in Simple Mesogens

IX. Features of Molecular Structure Favoring Formation of Smectic or Nematic/Cholesteric Phases

X. Molecular Structural Effects on the Liquid Crystal Properties of Sterol Derivatives

References

Selective Reflection of Cholesteric Liquid Crystals

I. Introduction

II. Physics of Cholesteric Mesophases

III. Chemistry of Cholesteric Liquid Crystals

IV. Temperature Dependence of Selective Reflection

V. Application

References

Liquid Crystals and Emulsions

I. Prefatory Remarks

II. Arrangement of Emulsifier Molecules in the Solid State

III. Emulsions with a Crystalline Emulsifier at the Oil/Water Interface

IV. The Structure of Liquid Crystalline Phases of Emulsifiers

V. Phase Behavior of Different Types of Emulsifier-Water Systems

VI. Molecular Arrangement in Surface Films

VII. Water/Emulsifier Interaction

VIII. Emulsifier/Emulsifier Interaction

IX. Hydrocarbon/Emulsifier Interaction

X. Emulsion Stability

XI. Location of the Liquid Crystal

XII. Flocculation and Coalescence

XIII. van der Waals Forces

References

Vibrational Spectroscopy of Liquid Crystals

I. Introduction

II. The Vibrational Spectrum as a Source of Information

III. Internal Vibrations in Nematic Phases

IV. Intermolecular Modes in Nematics and Nematogenic Crystals

V. Vibrational Spectra of Smectic Phases

VI. Vibrational Spectra of Cholesteric Phases

VII. Vibrational Spectra of Lyotropic Mesophases

References

Equilibrium Theory of Liquid Crystals

I. Introduction

II. Energetics

III. Equilibrium Equations

IV. Linear Theory

V. Nonlinear Problems

VI. Linear Problems

References

Subject Index