Advances in Liquid Crystals, Volume I is a collection of papers dealing with lyotropic and thermotropic liquid crystals. One paper discusses lyotropic liquid crystalline phases in systems of amphiphilic compounds, including the liquid crystalline phases, lyotropic liquid crystalline phase, the ""gel"" phases, and the transition between normal and reversed mesophases.
Another paper describes the ordering and structure of liquid crystals by reviewing research work on X-ray analysis of thermotropic liquid crystals. One paper explains the studies made on the mesomorphic behavior of block copolymers, including the incompatibility, segregation, and organization of polymers. The paper notes that plastic crystals and liquid crystals are different manifestations of the duality of the melting process in molecular crystals, resulting in the loss of positional and orientation order.
One paper describes the essential linear defects found in solid crystals, which have been researched in terms of the major role they play in macroscopic properties, particularly plasticity, as the defects or dislocations of translation. G. Friedel's work classifies liquid crystals into an intermediary symmetry composed of the nematic, the cholesteric, and the smectic phases. This intermediary symmetry occurs between the liquid type symmetry and the solid type symmetry.
This collection can prove useful for researchers in liquid crystals and industrial scientists in the field of chemistry and polymer composites.
Contributors Preface Introduction to the Series Composition, Properties and Structures of Liquid Crystalline Phases in Systems of Amphiphilic Compounds I. Introduction II. Liquid Crystalline Phases of Pure Amphiphilic Compounds III. Lyotropic Liquid Crystalline Phases IV. The "Gel Phase" V. The Transition between Normal and Reversed Mesophases VI. Concluding Comments References Ordering and Structure of Liquid Crystals I. Introduction II. The Use of Statistical Distribution Functions for Characterization of the Structure of Liquid Crystals III. The Matrix of Lattice Disturbances and Optical Modeling of the Structure IV. X-Ray Analysis of Unoriented Samples V. X-Ray Diagrams of Oriented Liquid Crystals VI. Two-Dimensional Cylindrical Function of Interatomic Distances VII. The Linear Distribution Function of Atoms along the Texture Axis and the Cylindrical Distribution Function of Atoms in the Projection on the Basal Plane VIII. The Cylindrical Distribution Functions of Molecules on the Basal Plane IX. The Function of Angular Distribution of the Long Molecular Axis and the Degree of Orientation S References Mesomorphic Properties of Block Copolymers I. Introduction II. Polymers and Block Copolymers III. Incompatibility and Segregation IV. Segregation and Organization V. Description of the Structures VI. Physical State of the Blocks VII. Occurrence of the Structures VIII. Variation of the Structural Parameters IX. Birefringence and Texture References Plastic Crystals, Liquid Crystals, and the Melting Phenomenon the Importance of Order Prefatory Remarks I. Introduction II. Properties of Plastic Crystals III. Properties of Liquid Crystals IV. Order Parameter Theories of Plastic Crystals V. Order Parameter Theories of Liquid Crystals Con
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- © Academic Press 1975
- 28th September 1975
- Academic Press
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