Thermotropic Liquid Crystal Polymer Blends

Thermotropic Liquid Crystal Polymer Blends

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ISBN 9780877629603
Cat# TX9609

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Summary

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.

Table of Contents

MOLECULAR DESIGN OF THERMOTROPIC, MAIN-CHAIN LIQUID CRYSTALLINE POLYMERS
Introduction
Liquid Crystalline Order in Polymers
The Development of Thermotropic, Main-Chain LCPs
The Chemical Structure of Thermotropic, Main-Chain LCPs
Synthetic Procedures
Characterization Techniques, Structure, and Phase Behavior
Conclusions

RHEOLOGY OF THERMOTROPIC LIQUID CRYSTALLINE POLYMERS
Introduction
The Low Viscosity Effect
Viscosity Sensitivity to Shear Rate
Normal Stresses, Die Swell, and Entrance Pressure Drop
Orientational Effects and Structure Development
Other Rheological Results-Concluding Remarks

PROCESSING AND PROPERTIES OF THERMOTROPIC LIQUID CRYSTALLINE POLYMERS
Introduction
Crystallization and Its Role in Processing
Extrusion of TLCP
Spinning of TLCP
Injection Molding
Other Processing Operations

RHEOLOGY OF THERMOTROPIC LIQUID CRYSTAL POLYMER BLENDS
Introduction
Liquid Crystal Polymers

PROCESSING AND PROPERTIES OF THERMOTROPIC LIQUID CRYSTAL POLYMER BLENDS
Introduction
Liquid Crystal Polymers
Extrusion
Spinning
Injection Molding
Phase Interactions in Liquid Crystal Polymer Blends

APPLICATIONS OF THERMOTROPIC LIQUID CRYSTAL POLYMERS AND THERMOTROPIC LIQUID CRYSTAL POLYMER BLENDS
Introduction
Liquid Crystal Polymers' Properties
Liquid Crystal Polymers' Application
LCPs' Costs and Strategies
LCP-Thermoplastic Matrix Blends
Technical Issues
Potential Applications of TP/LCP Blends
Cost and Market Considerations for LCP Blends


100 Tables and Figures, 401 References